18397582460 has 24 divisors (see below), whose sum is σ = 39100407696. Its totient is φ = 7270369280.

The previous prime is 18397582457. The next prime is 18397582477. The reversal of 18397582460 is 6428579381.

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, 5539781 + ... + 5543100.

It is an arithmetic number, because the mean of its divisors is an integer number (1629183654).

It is a 1-persistent number, because it is pandigital, but 2⋅18397582460 = 36795164920 is not.

Almost surely, 2^18397582460 is an apocalyptic number.

18397582460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18397582460 is an abundant number, since it is smaller than the sum of its proper divisors (20702825236).

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

18397582460 is a wasteful number, since it uses less digits than its factorization.

18397582460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11082973 (or 11082971 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 18397582460 in words is "eighteen billion, three hundred ninety-seven million, five hundred eighty-two thousand, four hundred sixty".