13157954997 has 16 divisors (see below), whose sum is σ = 19151768640. Its totient is φ = 7969132800.

The previous prime is 13157954987. The next prime is 13157955043. The reversal of 13157954997 is 79945975131.

It is not a de Polignac number, because 13157954997 - 2³² = 8862987701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13157954997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157954987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84754 + ... + 183027.

It is an arithmetic number, because the mean of its divisors is an integer number (1196985540).

Almost surely, 2^13157954997 is an apocalyptic number.

It is an amenable number.

13157954997 is a deficient number, since it is larger than the sum of its proper divisors (5993813643).

13157954997 is a wasteful number, since it uses less digits than its factorization.

13157954997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269284.

The product of its digits is 10716300, while the sum is 60.

The spelling of 13157954997 in words is "thirteen billion, one hundred fifty-seven million, nine hundred fifty-four thousand, nine hundred ninety-seven".