18477124290 has 48 divisors (see below), whose sum is σ = 50129247168. Its totient is φ = 4713005088.

The previous prime is 18477124231. The next prime is 18477124301. The reversal of 18477124290 is 9242177481.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4461004 + ... + 4465143.

It is an arithmetic number, because the mean of its divisors is an integer number (1044359316).

Almost surely, 2^18477124290 is an apocalyptic number.

18477124290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18477124290 is an abundant number, since it is smaller than the sum of its proper divisors (31652122878).

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

18477124290 is a wasteful number, since it uses less digits than its factorization.

18477124290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926183 (or 8926180 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 18477124290 in words is "eighteen billion, four hundred seventy-seven million, one hundred twenty-four thousand, two hundred ninety".