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86253551485861 = 1922339910211099
BaseRepresentation
bin10011100111001001111000…
…010011000000001110100101
3102022101202111022020121100211
4103213021320103000032211
542301134233140021421
6503240200131535421
724111420261524464
oct2347117023001645
9368352438217324
1086253551485861
1125534a20208721
129810623a5a571
1339188a0ca6006
1417429a0b169db
159e89bd3b79e1
hex4e72784c03a5

86253551485861 has 12 divisors (see below), whose sum is σ = 91036040940000. Its totient is φ = 81710390683368.

The previous prime is 86253551485847. The next prime is 86253551485877. The reversal of 86253551485861 is 16858415535268.

It is not a de Polignac number, because 86253551485861 - 213 = 86253551477669 is a prime.

It is a super-2 number, since 2×862535514858612 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86253551485841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3341490 + ... + 13552588.

It is an arithmetic number, because the mean of its divisors is an integer number (7586336745000).

Almost surely, 286253551485861 is an apocalyptic number.

It is an amenable number.

86253551485861 is a deficient number, since it is larger than the sum of its proper divisors (4782489454139).

86253551485861 is a wasteful number, since it uses less digits than its factorization.

86253551485861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10234536 (or 10234517 counting only the distinct ones).

The product of its digits is 276480000, while the sum is 67.

The spelling of 86253551485861 in words is "eighty-six trillion, two hundred fifty-three billion, five hundred fifty-one million, four hundred eighty-five thousand, eight hundred sixty-one".

Divisors: 1 19 361 23399 444581 8447039 10211099 194010881 3686206739 238929505501 4539660604519 86253551485861