13113632772 has 72 divisors (see below), whose sum is σ = 35013538560. Its totient is φ = 4131812160.

The previous prime is 13113632683. The next prime is 13113632783. The reversal of 13113632772 is 27723631131.

13113632772 is a `hidden beast` number, since 1 + 3 + 1 + 13 + 632 + 7 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88647 + ... + 184622.

Almost surely, 2^13113632772 is an apocalyptic number.

13113632772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13113632772 is an abundant number, since it is smaller than the sum of its proper divisors (21899905788).

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

13113632772 is a wasteful number, since it uses less digits than its factorization.

13113632772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273353 (or 273348 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The spelling of 13113632772 in words is "thirteen billion, one hundred thirteen million, six hundred thirty-two thousand, seven hundred seventy-two".