87897083157 has 12 divisors (see below), whose sum is σ = 136728796204. Its totient is φ = 54090512640.

The previous prime is 87897083077. The next prime is 87897083161. The reversal of 87897083157 is 75138079878.

It can be written as a sum of positive squares in 2 ways, for example, as 6581427876 + 81315655281 = 81126^2 + 285159^2 .

It is not a de Polignac number, because 87897083157 - 2³⁰ = 86823341333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87897083094 and 87897083103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87897083257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375628444 + ... + 375628677.

Almost surely, 2^87897083157 is an apocalyptic number.

It is an amenable number.

87897083157 is a deficient number, since it is larger than the sum of its proper divisors (48831713047).

87897083157 is a wasteful number, since it uses less digits than its factorization.

87897083157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751257140 (or 751257137 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 63.

The spelling of 87897083157 in words is "eighty-seven billion, eight hundred ninety-seven million, eighty-three thousand, one hundred fifty-seven".