18741081438860 has 96 divisors (see below), whose sum is σ = 44024131900224. Its totient is φ = 6643897344000.

The previous prime is 18741081438857. The next prime is 18741081438899. The reversal of 18741081438860 is 6883418014781.

It is a self number, because there is not a number n which added to its sum of digits gives 18741081438860.

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, 4662761 + ... + 7695680.

It is an arithmetic number, because the mean of its divisors is an integer number (458584707294).

Almost surely, 2^{18741081438860} is an apocalyptic number.

18741081438860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18741081438860 is an abundant number, since it is smaller than the sum of its proper divisors (25283050461364).

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

18741081438860 is a wasteful number, since it uses less digits than its factorization.

18741081438860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358635 (or 12358633 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 59.

The spelling of 18741081438860 in words is "eighteen trillion, seven hundred forty-one billion, eighty-one million, four hundred thirty-eight thousand, eight hundred sixty".