18614874679440 has 160 divisors (see below), whose sum is σ = 62996345892480. Its totient is φ = 4519354134528.

The previous prime is 18614874679411. The next prime is 18614874679493. The reversal of 18614874679440 is 4497647841681.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40637350 + ... + 41092869.

It is an arithmetic number, because the mean of its divisors is an integer number (393727161828).

Almost surely, 2^{18614874679440} is an apocalyptic number.

18614874679440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18614874679440 is an abundant number, since it is smaller than the sum of its proper divisors (44381471213040).

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

18614874679440 is a wasteful number, since it uses less digits than its factorization.

18614874679440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81730321 (or 81730315 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 69.

The spelling of 18614874679440 in words is "eighteen trillion, six hundred fourteen billion, eight hundred seventy-four million, six hundred seventy-nine thousand, four hundred forty".