91442244204 has 72 divisors (see below), whose sum is σ = 241250510592. Its totient is φ = 29148847200.

The previous prime is 91442244149. The next prime is 91442244209. The reversal of 91442244204 is 40244224419.

91442244204 is a `hidden beast` number, since 9 + 1 + 4 + 4 + 224 + 420 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (91442244209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4669257 + ... + 4688799.

It is an arithmetic number, because the mean of its divisors is an integer number (3350701536).

Almost surely, 2^91442244204 is an apocalyptic number.

It is an amenable number.

91442244204 is an abundant number, since it is smaller than the sum of its proper divisors (149808266388).

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

91442244204 is a wasteful number, since it uses less digits than its factorization.

91442244204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25227 (or 25222 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 91442244204 in words is "ninety-one billion, four hundred forty-two million, two hundred forty-four thousand, two hundred four".