91164858848 has 48 divisors (see below), whose sum is σ = 210664760544. Its totient is φ = 38014686720.

The previous prime is 91164858847. The next prime is 91164858877. The reversal of 91164858848 is 84885846119.

It is a super-2 number, since 2×91164858848² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91164858847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5491523 + ... + 5508098.

It is an arithmetic number, because the mean of its divisors is an integer number (4388849178).

Almost surely, 2^91164858848 is an apocalyptic number.

It is an amenable number.

91164858848 is an abundant number, since it is smaller than the sum of its proper divisors (119499901696).

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

91164858848 is a wasteful number, since it uses less digits than its factorization.

91164858848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10999675 (or 10999667 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 62.

The spelling of 91164858848 in words is "ninety-one billion, one hundred sixty-four million, eight hundred fifty-eight thousand, eight hundred forty-eight".