87745185698 has 32 divisors (see below), whose sum is σ = 134040158208. Its totient is φ = 43074763200.

The previous prime is 87745185667. The next prime is 87745185709. The reversal of 87745185698 is 89658154778.

It is a super-2 number, since 2×87745185698² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9552668 + ... + 9561848.

It is an arithmetic number, because the mean of its divisors is an integer number (4188754944).

Almost surely, 2^87745185698 is an apocalyptic number.

87745185698 is a deficient number, since it is larger than the sum of its proper divisors (46294972510).

87745185698 is a wasteful number, since it uses less digits than its factorization.

87745185698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9698.

The product of its digits is 135475200, while the sum is 68.

The spelling of 87745185698 in words is "eighty-seven billion, seven hundred forty-five million, one hundred eighty-five thousand, six hundred ninety-eight".