11400174972 has 36 divisors (see below), whose sum is σ = 29027465376. Its totient is φ = 3772319040.

The previous prime is 11400174953. The next prime is 11400174977. The reversal of 11400174972 is 27947100411.

11400174972 is a `hidden beast` number, since 11 + 400 + 174 + 9 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400174977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1150804 + ... + 1160667.

Almost surely, 2^11400174972 is an apocalyptic number.

11400174972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11400174972 is an abundant number, since it is smaller than the sum of its proper divisors (17627290404).

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

11400174972 is a wasteful number, since it uses less digits than its factorization.

11400174972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311618 (or 2311613 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 11400174972 in words is "eleven billion, four hundred million, one hundred seventy-four thousand, nine hundred seventy-two".