18238472130 has 32 divisors (see below), whose sum is σ = 43799486400. Its totient is φ = 4860575552.

The previous prime is 18238472129. The next prime is 18238472143. The reversal of 18238472130 is 3127483281.

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, 139185 + ... + 236324.

It is an arithmetic number, because the mean of its divisors is an integer number (1368733950).

Almost surely, 2^18238472130 is an apocalyptic number.

18238472130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18238472130 is an abundant number, since it is smaller than the sum of its proper divisors (25561014270).

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

18238472130 is a wasteful number, since it uses less digits than its factorization.

18238472130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377138.

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 18238472130 in words is "eighteen billion, two hundred thirty-eight million, four hundred seventy-two thousand, one hundred thirty".