18739628160 has 256 divisors, whose sum is σ = 65710293120. Its totient is φ = 4542320640.

The previous prime is 18739628147. The next prime is 18739628179. The reversal of 18739628160 is 6182693781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2551854 + ... + 2559186.

Almost surely, 2^18739628160 is an apocalyptic number.

18739628160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18739628160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32855146560).

18739628160 is an abundant number, since it is smaller than the sum of its proper divisors (46970664960).

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

18739628160 is an equidigital number, since it uses as much as digits as its factorization.

18739628160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388 (or 7354 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 18739628160 in words is "eighteen billion, seven hundred thirty-nine million, six hundred twenty-eight thousand, one hundred sixty".