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8490881790852 = 22317198572556161
BaseRepresentation
bin111101110001110111111…
…1111100011001110000100
31010001201110011002002121220
41323203233333203032010
52103103311214301402
630020353544240340
71534305652252506
oct173435777431604
933051404062556
108490881790852
112783a6546119a
12b5170b1700b0
134978c0943bb6
14214d648b9d76
15ead0231bdbc
hex7b8effe3384

8490881790852 has 96 divisors (see below), whose sum is σ = 22107324919680. Its totient is φ = 2520660049920.

The previous prime is 8490881790851. The next prime is 8490881790857. The reversal of 8490881790852 is 2580971880948.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8490881790851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2043652 + ... + 4599812.

It is an arithmetic number, because the mean of its divisors is an integer number (230284634580).

Almost surely, 28490881790852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8490881790852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11053662459840).

8490881790852 is an abundant number, since it is smaller than the sum of its proper divisors (13616443128828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8490881790852 is a wasteful number, since it uses less digits than its factorization.

8490881790852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557061 (or 2557059 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 69.

The spelling of 8490881790852 in words is "eight trillion, four hundred ninety billion, eight hundred eighty-one million, seven hundred ninety thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 19 34 38 51 57 68 76 102 114 204 228 323 646 857 969 1292 1714 1938 2571 3428 3876 5142 10284 14569 16283 29138 32566 43707 48849 58276 65132 87414 97698 174828 195396 276811 553622 830433 1107244 1660866 2556161 3321732 5112322 7668483 10224644 15336966 30673932 43454737 48567059 86909474 97134118 130364211 145701177 173818948 194268236 260728422 291402354 521456844 582804708 825640003 1651280006 2190629977 2476920009 3302560012 4381259954 4953840018 6571889931 8762519908 9907680036 13143779862 26287559724 37240709609 41621969563 74481419218 83243939126 111722128827 124865908689 148962838436 166487878252 223444257654 249731817378 446888515308 499463634756 707573482571 1415146965142 2122720447713 2830293930284 4245440895426 8490881790852