91959059432 has 32 divisors (see below), whose sum is σ = 178888849920. Its totient is φ = 44270425920.

The previous prime is 91959059431. The next prime is 91959059441. The reversal of 91959059432 is 23495095919.

It is a happy number.

It is a super-2 number, since 2×91959059432² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91959059431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892268 + ... + 989979.

It is an arithmetic number, because the mean of its divisors is an integer number (5590276560).

Almost surely, 2^91959059432 is an apocalyptic number.

It is an amenable number.

91959059432 is a deficient number, since it is larger than the sum of its proper divisors (86929790488).

91959059432 is a wasteful number, since it uses less digits than its factorization.

91959059432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882481 (or 1882477 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 56.

The spelling of 91959059432 in words is "ninety-one billion, nine hundred fifty-nine million, fifty-nine thousand, four hundred thirty-two".