18874731860 has 24 divisors (see below), whose sum is σ = 41723092320. Its totient is φ = 7152529824.

The previous prime is 18874731853. The next prime is 18874731907. The reversal of 18874731860 is 6813747881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24834794 + ... + 24835553.

It is an arithmetic number, because the mean of its divisors is an integer number (1738462180).

Almost surely, 2^18874731860 is an apocalyptic number.

18874731860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18874731860 is an abundant number, since it is smaller than the sum of its proper divisors (22848360460).

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

18874731860 is a wasteful number, since it uses less digits than its factorization.

18874731860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49670375 (or 49670373 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 18874731860 in words is "eighteen billion, eight hundred seventy-four million, seven hundred thirty-one thousand, eight hundred sixty".