11388520772992 has 32 divisors (see below), whose sum is σ = 24750620433000. Its totient is φ = 5176600350720.

The previous prime is 11388520772977. The next prime is 11388520773013. The reversal of 11388520772992 is 29927702588311.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

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, 4044217617 + ... + 4044220432.

Almost surely, 2^{11388520772992} is an apocalyptic number.

It is an amenable number.

11388520772992 is an abundant number, since it is smaller than the sum of its proper divisors (13362099660008).

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

11388520772992 is an equidigital number, since it uses as much as digits as its factorization.

11388520772992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088438074 (or 8088438062 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 64.

The spelling of 11388520772992 in words is "eleven trillion, three hundred eighty-eight billion, five hundred twenty million, seven hundred seventy-two thousand, nine hundred ninety-two".