18364872744 has 384 divisors, whose sum is σ = 58618909440. Its totient is φ = 5353869312.

The previous prime is 18364872703. The next prime is 18364872763. The reversal of 18364872744 is 44727846381.

18364872744 is a `hidden beast` number, since 1 + 8 + 364 + 8 + 7 + 274 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28123522 + ... + 28124174.

It is an arithmetic number, because the mean of its divisors is an integer number (152653410).

Almost surely, 2^18364872744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18364872744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29309454720).

18364872744 is an abundant number, since it is smaller than the sum of its proper divisors (40254036696).

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

18364872744 is a wasteful number, since it uses less digits than its factorization.

18364872744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 735 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 18364872744 in words is "eighteen billion, three hundred sixty-four million, eight hundred seventy-two thousand, seven hundred forty-four".