11813544464 has 20 divisors (see below), whose sum is σ = 23883905856. Its totient is φ = 5649955872.

The previous prime is 11813544451. The next prime is 11813544493. The reversal of 11813544464 is 46444531811.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16050644 + ... + 16051379.

Almost surely, 2^11813544464 is an apocalyptic number.

It is an amenable number.

11813544464 is an abundant number, since it is smaller than the sum of its proper divisors (12070361392).

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

11813544464 is a wasteful number, since it uses less digits than its factorization.

11813544464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32102054 (or 32102048 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The spelling of 11813544464 in words is "eleven billion, eight hundred thirteen million, five hundred forty-four thousand, four hundred sixty-four".