18890317085754 has 64 divisors (see below), whose sum is σ = 38188444799232. Its totient is φ = 6229161984000.

The previous prime is 18890317085729. The next prime is 18890317085771. The reversal of 18890317085754 is 45758071309881.

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, 1252915264 + ... + 1252930340.

It is an arithmetic number, because the mean of its divisors is an integer number (596694449988).

Almost surely, 2^{18890317085754} is an apocalyptic number.

18890317085754 is an abundant number, since it is smaller than the sum of its proper divisors (19298127713478).

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

18890317085754 is a wasteful number, since it uses less digits than its factorization.

18890317085754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20871.

The product of its (nonzero) digits is 67737600, while the sum is 66.

The spelling of 18890317085754 in words is "eighteen trillion, eight hundred ninety billion, three hundred seventeen million, eighty-five thousand, seven hundred fifty-four".