91677928796 has 24 divisors (see below), whose sum is σ = 161311825920. Its totient is φ = 45588942000.

The previous prime is 91677928789. The next prime is 91677928801. The reversal of 91677928796 is 69782977619.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4450721 + ... + 4471271.

It is an arithmetic number, because the mean of its divisors is an integer number (6721326080).

Almost surely, 2^91677928796 is an apocalyptic number.

It is an amenable number.

91677928796 is a deficient number, since it is larger than the sum of its proper divisors (69633897124).

91677928796 is a wasteful number, since it uses less digits than its factorization.

91677928796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26585 (or 26583 counting only the distinct ones).

The product of its digits is 144027072, while the sum is 71.

The spelling of 91677928796 in words is "ninety-one billion, six hundred seventy-seven million, nine hundred twenty-eight thousand, seven hundred ninety-six".