11509677272 has 32 divisors (see below), whose sum is σ = 23449267200. Its totient is φ = 5276080800.

The previous prime is 11509677251. The next prime is 11509677281. The reversal of 11509677272 is 27277690511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216604 + ... + 1226027.

It is an arithmetic number, because the mean of its divisors is an integer number (732789600).

Almost surely, 2^11509677272 is an apocalyptic number.

It is an amenable number.

11509677272 is an abundant number, since it is smaller than the sum of its proper divisors (11939589928).

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

11509677272 is a wasteful number, since it uses less digits than its factorization.

11509677272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442687 (or 2442683 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 47.

The spelling of 11509677272 in words is "eleven billion, five hundred nine million, six hundred seventy-seven thousand, two hundred seventy-two".