13957957287 has 32 divisors (see below), whose sum is σ = 21964132800. Its totient is φ = 8730215424.

The previous prime is 13957957271. The next prime is 13957957291. The reversal of 13957957287 is 78275975931.

13957957287 is a `hidden beast` number, since 1 + 3 + 9 + 57 + 9 + 572 + 8 + 7 = 666.

It is not a de Polignac number, because 13957957287 - 2⁴ = 13957957271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13957957217) 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, 97539 + ... + 193467.

It is an arithmetic number, because the mean of its divisors is an integer number (686379150).

Almost surely, 2^13957957287 is an apocalyptic number.

13957957287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13957957287 is a deficient number, since it is larger than the sum of its proper divisors (8006175513).

13957957287 is a wasteful number, since it uses less digits than its factorization.

13957957287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96272 (or 96266 counting only the distinct ones).

The product of its digits is 33339600, while the sum is 63.

The spelling of 13957957287 in words is "thirteen billion, nine hundred fifty-seven million, nine hundred fifty-seven thousand, two hundred eighty-seven".