91020334732 has 24 divisors (see below), whose sum is σ = 160127906400. Its totient is φ = 45269602560.

The previous prime is 91020334721. The next prime is 91020334747. The reversal of 91020334732 is 23743302019.

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, 5072857 + ... + 5090767.

It is an arithmetic number, because the mean of its divisors is an integer number (6671996100).

Almost surely, 2^91020334732 is an apocalyptic number.

It is an amenable number.

91020334732 is a deficient number, since it is larger than the sum of its proper divisors (69107571668).

91020334732 is a wasteful number, since it uses less digits than its factorization.

91020334732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24561 (or 24559 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 91020334732 in words is "ninety-one billion, twenty million, three hundred thirty-four thousand, seven hundred thirty-two".