91027559532 has 96 divisors (see below), whose sum is σ = 261490819072. Its totient is φ = 24000074496.

The previous prime is 91027559521. The next prime is 91027559551. The reversal of 91027559532 is 23595572019.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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 31 ways as a sum of consecutive naturals, for example, 4321458 + ... + 4342470.

Almost surely, 2^91027559532 is an apocalyptic number.

It is an amenable number.

91027559532 is an abundant number, since it is smaller than the sum of its proper divisors (170463259540).

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

91027559532 is a wasteful number, since it uses less digits than its factorization.

91027559532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25007 (or 25005 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 48.

The spelling of 91027559532 in words is "ninety-one billion, twenty-seven million, five hundred fifty-nine thousand, five hundred thirty-two".