102457936431 has 12 divisors (see below), whose sum is σ = 148004638600. Its totient is φ = 68300748720.

The previous prime is 102457936423. The next prime is 102457936457. The reversal of 102457936431 is 134639754201.

102457936431 is a `hidden beast` number, since 1 + 0 + 2 + 4 + 579 + 36 + 43 + 1 = 666.

It is not a de Polignac number, because 102457936431 - 2³ = 102457936423 is a prime.

It is a super-2 number, since 2×102457936431² (a number of 23 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 (102457936421) 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, 232705 + ... + 508986.

Almost surely, 2^102457936431 is an apocalyptic number.

102457936431 is a deficient number, since it is larger than the sum of its proper divisors (45546702169).

102457936431 is a wasteful number, since it uses less digits than its factorization.

102457936431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757046 (or 757043 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 102457936431 in words is "one hundred two billion, four hundred fifty-seven million, nine hundred thirty-six thousand, four hundred thirty-one".