18057620730 has 64 divisors (see below), whose sum is σ = 43874058240. Its totient is φ = 4756175424.

The previous prime is 18057620699. The next prime is 18057620741. The reversal of 18057620730 is 3702675081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854431 + ... + 875309.

It is an arithmetic number, because the mean of its divisors is an integer number (685532160).

Almost surely, 2^18057620730 is an apocalyptic number.

18057620730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18057620730 is an abundant number, since it is smaller than the sum of its proper divisors (25816437510).

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

18057620730 is a wasteful number, since it uses less digits than its factorization.

18057620730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21243.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 18057620730 in words is "eighteen billion, fifty-seven million, six hundred twenty thousand, seven hundred thirty".