87697149776 has 10 divisors (see below), whose sum is σ = 169913227722. Its totient is φ = 43848574880.

The previous prime is 87697149713. The next prime is 87697149829. The reversal of 87697149776 is 67794179678.

It can be written as a sum of positive squares in only one way, i.e., 82297839376 + 5399310400 = 286876^2 + 73480^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2740535915 + ... + 2740535946.

Almost surely, 2^87697149776 is an apocalyptic number.

It is an amenable number.

87697149776 is a deficient number, since it is larger than the sum of its proper divisors (82216077946).

87697149776 is a wasteful number, since it uses less digits than its factorization.

87697149776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481071869 (or 5481071863 counting only the distinct ones).

The product of its digits is 224042112, while the sum is 71.

The spelling of 87697149776 in words is "eighty-seven billion, six hundred ninety-seven million, one hundred forty-nine thousand, seven hundred seventy-six".