18744785072274 has 16 divisors (see below), whose sum is σ = 37495838327040. Its totient is φ = 6247216993680.

The previous prime is 18744785072269. The next prime is 18744785072287. The reversal of 18744785072274 is 47227058744781.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261135394 + ... + 261207165.

It is an arithmetic number, because the mean of its divisors is an integer number (2343489895440).

Almost surely, 2^{18744785072274} is an apocalyptic number.

18744785072274 is an abundant number, since it is smaller than the sum of its proper divisors (18751053254766).

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

18744785072274 is a wasteful number, since it uses less digits than its factorization.

18744785072274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522348545.

The product of its (nonzero) digits is 196689920, while the sum is 66.

The spelling of 18744785072274 in words is "eighteen trillion, seven hundred forty-four billion, seven hundred eighty-five million, seventy-two thousand, two hundred seventy-four".