91000911092 has 48 divisors (see below), whose sum is σ = 196057959552. Its totient is φ = 35990075520.

The previous prime is 91000911047. The next prime is 91000911101. The reversal of 91000911092 is 29011900019.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1309658 + ... + 1377390.

It is an arithmetic number, because the mean of its divisors is an integer number (4084540824).

Almost surely, 2^91000911092 is an apocalyptic number.

It is an amenable number.

91000911092 is an abundant number, since it is smaller than the sum of its proper divisors (105057048460).

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

91000911092 is a wasteful number, since it uses less digits than its factorization.

91000911092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71448 (or 71446 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 91000911092 in words is "ninety-one billion, nine hundred eleven thousand, ninety-two".