18474027890736 has 80 divisors (see below), whose sum is σ = 52066523957760. Its totient is φ = 5597829576960.

The previous prime is 18474027890723. The next prime is 18474027890789. The reversal of 18474027890736 is 63709872047481.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 7132761 + ... + 9371463.

It is an arithmetic number, because the mean of its divisors is an integer number (650831549472).

Almost surely, 2^{18474027890736} is an apocalyptic number.

18474027890736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18474027890736 is an abundant number, since it is smaller than the sum of its proper divisors (33592496067024).

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

18474027890736 is a wasteful number, since it uses less digits than its factorization.

18474027890736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254354 (or 2254348 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 66.

The spelling of 18474027890736 in words is "eighteen trillion, four hundred seventy-four billion, twenty-seven million, eight hundred ninety thousand, seven hundred thirty-six".