18742869504 has 160 divisors (see below), whose sum is σ = 58401024000. Its totient is φ = 5918717952.

The previous prime is 18742869499. The next prime is 18742869511. The reversal of 18742869504 is 40596824781.

It is a happy number.

18742869504 is a `hidden beast` number, since 1 + 8 + 74 + 2 + 8 + 69 + 504 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226977 + ... + 298335.

It is an arithmetic number, because the mean of its divisors is an integer number (365006400).

Almost surely, 2^18742869504 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 18742869504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29200512000).

18742869504 is an abundant number, since it is smaller than the sum of its proper divisors (39658154496).

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

18742869504 is an equidigital number, since it uses as much as digits as its factorization.

18742869504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71405 (or 71383 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 18742869504 in words is "eighteen billion, seven hundred forty-two million, eight hundred sixty-nine thousand, five hundred four".