91456845264 has 30 divisors (see below), whose sum is σ = 255952143746. Its totient is φ = 30485615040.

The previous prime is 91456845241. The next prime is 91456845307. The reversal of 91456845264 is 46254865419.

It is a happy number.

91456845264 is a `hidden beast` number, since 9 + 1 + 456 + 84 + 52 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 88323084864 + 3133760400 = 297192^2 + 55980^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 91456845264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317558347 + ... + 317558634.

Almost surely, 2^91456845264 is an apocalyptic number.

It is an amenable number.

91456845264 is an abundant number, since it is smaller than the sum of its proper divisors (164495298482).

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

91456845264 is a wasteful number, since it uses less digits than its factorization.

91456845264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635116995 (or 635116986 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 91456845264 in words is "ninety-one billion, four hundred fifty-six million, eight hundred forty-five thousand, two hundred sixty-four".