91944335952 has 160 divisors (see below), whose sum is σ = 314730332160. Its totient is φ = 25127625600.

The previous prime is 91944335927. The next prime is 91944335969. The reversal of 91944335952 is 25953344919.

91944335952 is a `hidden beast` number, since 9 + 1 + 9 + 4 + 43 + 3 + 595 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 591424 + ... + 730527.

It is an arithmetic number, because the mean of its divisors is an integer number (1967064576).

Almost surely, 2^91944335952 is an apocalyptic number.

91944335952 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91944335952 is an abundant number, since it is smaller than the sum of its proper divisors (222785996208).

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

91944335952 is a wasteful number, since it uses less digits than its factorization.

91944335952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321998 (or 1321986 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The spelling of 91944335952 in words is "ninety-one billion, nine hundred forty-four million, three hundred thirty-five thousand, nine hundred fifty-two".