157872293577 has 24 divisors (see below), whose sum is σ = 243078243200. Its totient is φ = 98446671648.

The previous prime is 157872293533. The next prime is 157872293587. The reversal of 157872293577 is 775392278751.

It is a happy number.

157872293577 is a `hidden beast` number, since 1 + 57 + 8 + 7 + 2 + 2 + 9 + 3 + 577 = 666.

It is not a de Polignac number, because 157872293577 - 2⁸ = 157872293321 is a prime.

It is a super-2 number, since 2×157872293577² (a number of 23 digits) contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157872293587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5829718 + ... + 5856735.

Almost surely, 2^157872293577 is an apocalyptic number.

It is an amenable number.

157872293577 is a deficient number, since it is larger than the sum of its proper divisors (85205949623).

157872293577 is a wasteful number, since it uses less digits than its factorization.

157872293577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11686557 (or 11686554 counting only the distinct ones).

The product of its digits is 51861600, while the sum is 63.

The spelling of 157872293577 in words is "one hundred fifty-seven billion, eight hundred seventy-two million, two hundred ninety-three thousand, five hundred seventy-seven".