157597139628 has 36 divisors (see below), whose sum is σ = 398429912608. Its totient is φ = 52524551520.

The previous prime is 157597139611. The next prime is 157597139663. The reversal of 157597139628 is 826931795751.

157597139628 is a `hidden beast` number, since 1 + 5 + 7 + 597 + 1 + 39 + 6 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78676 + ... + 566907.

Almost surely, 2^157597139628 is an apocalyptic number.

157597139628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

157597139628 is an abundant number, since it is smaller than the sum of its proper divisors (240832772980).

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

157597139628 is a wasteful number, since it uses less digits than its factorization.

157597139628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652374 (or 652369 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 63.

The spelling of 157597139628 in words is "one hundred fifty-seven billion, five hundred ninety-seven million, one hundred thirty-nine thousand, six hundred twenty-eight".