91056808338 has 32 divisors (see below), whose sum is σ = 189141614592. Its totient is φ = 29192950800.

The previous prime is 91056808327. The next prime is 91056808391. The reversal of 91056808338 is 83380865019.

It is a Curzon number.

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, 1471378 + ... + 1532013.

It is an arithmetic number, because the mean of its divisors is an integer number (5910675456).

Almost surely, 2^91056808338 is an apocalyptic number.

91056808338 is an abundant number, since it is smaller than the sum of its proper divisors (98084806254).

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

91056808338 is a wasteful number, since it uses less digits than its factorization.

91056808338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003590.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 91056808338 in words is "ninety-one billion, fifty-six million, eight hundred eight thousand, three hundred thirty-eight".