90728715696 has 40 divisors (see below), whose sum is σ = 236171711424. Its totient is φ = 30012041280.

The previous prime is 90728715689. The next prime is 90728715767. The reversal of 90728715696 is 69651782709.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7208146 + ... + 7220721.

Almost surely, 2^90728715696 is an apocalyptic number.

It is an amenable number.

90728715696 is an abundant number, since it is smaller than the sum of its proper divisors (145442995728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90728715696 is a wasteful number, since it uses less digits than its factorization.

90728715696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429009 (or 14429003 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 90728715696 in words is "ninety billion, seven hundred twenty-eight million, seven hundred fifteen thousand, six hundred ninety-six".