13716581772 has 18 divisors (see below), whose sum is σ = 32006304148. Its totient is φ = 4572058688.

The previous prime is 13716581759. The next prime is 13716581819. The reversal of 13716581772 is 27718561731.

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, 388804 + ... + 422612.

Almost surely, 2^13716581772 is an apocalyptic number.

13716581772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13716581772 is an abundant number, since it is smaller than the sum of its proper divisors (18289722376).

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

13716581772 is an frugal number, since it uses more digits than its factorization.

13716581772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67625 (or 33814 counting only the distinct ones).

The product of its digits is 493920, while the sum is 48.

Multiplying 13716581772 by its sum of digits (48), we get a square (658395925056 = 811416²).

The spelling of 13716581772 in words is "thirteen billion, seven hundred sixteen million, five hundred eighty-one thousand, seven hundred seventy-two".