87157689236 has 12 divisors (see below), whose sum is σ = 153164141760. Its totient is φ = 43396505880.

The previous prime is 87157689217. The next prime is 87157689239. The reversal of 87157689236 is 63298675178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87157689239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45583610 + ... + 45585521.

It is an arithmetic number, because the mean of its divisors is an integer number (12763678480).

Almost surely, 2^87157689236 is an apocalyptic number.

It is an amenable number.

87157689236 is a deficient number, since it is larger than the sum of its proper divisors (66006452524).

87157689236 is a wasteful number, since it uses less digits than its factorization.

87157689236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91169374 (or 91169372 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 87157689236 in words is "eighty-seven billion, one hundred fifty-seven million, six hundred eighty-nine thousand, two hundred thirty-six".