13211382772 has 48 divisors (see below), whose sum is σ = 26682163200. Its totient is φ = 5606610912.

The previous prime is 13211382749. The next prime is 13211382817. The reversal of 13211382772 is 27728311231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1998729 + ... + 2005327.

It is an arithmetic number, because the mean of its divisors is an integer number (555878400).

Almost surely, 2^13211382772 is an apocalyptic number.

It is an amenable number.

13211382772 is an abundant number, since it is smaller than the sum of its proper divisors (13470780428).

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

13211382772 is a wasteful number, since it uses less digits than its factorization.

13211382772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300 (or 7298 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The spelling of 13211382772 in words is "thirteen billion, two hundred eleven million, three hundred eighty-two thousand, seven hundred seventy-two".