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19072808676768 = 25371153139350237
BaseRepresentation
bin1000101011000101110111…
…11111000110110110100000
32111112100020211102002020210
410111202323333012312200
54444442103010124033
6104321532150134120
74005651656556330
oct425427377066640
974470224362223
1019072808676768
1160938072a8690
122180531051340
13a8473430a272
1449d1b386d0c0
152311da5d0d63
hex1158bbfc6da0

19072808676768 has 384 divisors, whose sum is σ = 64055560181760. Its totient is φ = 4825523589120.

The previous prime is 19072808676763. The next prime is 19072808676773. The reversal of 19072808676768 is 86767680827091.

It is an interprime number because it is at equal distance from previous prime (19072808676763) and next prime (19072808676773).

It is a self number, because there is not a number n which added to its sum of digits gives 19072808676768.

It is not an unprimeable number, because it can be changed into a prime (19072808676763) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54281746 + ... + 54631982.

It is an arithmetic number, because the mean of its divisors is an integer number (166811354640).

Almost surely, 219072808676768 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 19072808676768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32027780090880).

19072808676768 is an abundant number, since it is smaller than the sum of its proper divisors (44982751504992).

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

19072808676768 is a wasteful number, since it uses less digits than its factorization.

19072808676768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350460 (or 350452 counting only the distinct ones).

The product of its (nonzero) digits is 682795008, while the sum is 75.

The spelling of 19072808676768 in words is "nineteen trillion, seventy-two billion, eight hundred eight million, six hundred seventy-six thousand, seven hundred sixty-eight".