13564492992 has 84 divisors (see below), whose sum is σ = 38911785016. Its totient is φ = 4517821440.

The previous prime is 13564492927. The next prime is 13564493051. The reversal of 13564492992 is 29929446531.

13564492992 is a `hidden beast` number, since 1 + 3 + 5 + 64 + 492 + 9 + 92 = 666.

It is a super-2 number, since 2×13564492992² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751983 + ... + 769809.

Almost surely, 2^13564492992 is an apocalyptic number.

13564492992 is a gapful number since it is divisible by the number (12) 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 13564492992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19455892508).

13564492992 is an abundant number, since it is smaller than the sum of its proper divisors (25347292024).

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

13564492992 is a wasteful number, since it uses less digits than its factorization.

13564492992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19166 (or 19153 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 13564492992 in words is "thirteen billion, five hundred sixty-four million, four hundred ninety-two thousand, nine hundred ninety-two".