18400407301830 has 32 divisors (see below), whose sum is σ = 46485239500800. Its totient is φ = 4648523949792.

The previous prime is 18400407301817. The next prime is 18400407301897. The reversal of 18400407301830 is 3810370400481.

It is a congruent number.

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, 16140707590 + ... + 16140708729.

It is an arithmetic number, because the mean of its divisors is an integer number (1452663734400).

Almost surely, 2^{18400407301830} is an apocalyptic number.

18400407301830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18400407301830 is an abundant number, since it is smaller than the sum of its proper divisors (28084832198970).

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

18400407301830 is a wasteful number, since it uses less digits than its factorization.

18400407301830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32281416348.

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

The spelling of 18400407301830 in words is "eighteen trillion, four hundred billion, four hundred seven million, three hundred one thousand, eight hundred thirty".