91027304801 has 24 divisors (see below), whose sum is σ = 100877996160. Its totient is φ = 81879089760.

The previous prime is 91027304761. The next prime is 91027304803. The reversal of 91027304801 is 10840372019.

It is not a de Polignac number, because 91027304801 - 2³⁰ = 89953562977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91027304803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920696 + ... + 1014758.

It is an arithmetic number, because the mean of its divisors is an integer number (4203249840).

Almost surely, 2^91027304801 is an apocalyptic number.

It is an amenable number.

91027304801 is a deficient number, since it is larger than the sum of its proper divisors (9850691359).

91027304801 is a wasteful number, since it uses less digits than its factorization.

91027304801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94197 (or 94166 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 91027304801 in words is "ninety-one billion, twenty-seven million, three hundred four thousand, eight hundred one".