10891920534264 has 864 divisors, whose sum is σ = 39278108928240. Its totient is φ = 2817295810560.

The previous prime is 10891920534233. The next prime is 10891920534281. The reversal of 10891920534264 is 46243502919801.

It is a happy number.

10891920534264 is a `hidden beast` number, since 1 + 0 + 8 + 9 + 1 + 9 + 205 + 3 + 426 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10891920534264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 2962173994 + ... + 2962177670.

Almost surely, 2^{10891920534264} is an apocalyptic number.

10891920534264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10891920534264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19639054464120).

10891920534264 is an abundant number, since it is smaller than the sum of its proper divisors (28386188393976).

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

10891920534264 is a wasteful number, since it uses less digits than its factorization.

10891920534264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991 (or 3957 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 10891920534264 in words is "ten trillion, eight hundred ninety-one billion, nine hundred twenty million, five hundred thirty-four thousand, two hundred sixty-four".