18890317085755 has 8 divisors (see below), whose sum is σ = 22668507957600. Its totient is φ = 15112168698816.

The previous prime is 18890317085729. The next prime is 18890317085771. The reversal of 18890317085755 is 55758071309881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18890317085755 - 2⁵ = 18890317085723 is a prime.

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, 9634695 + ... + 11428384.

It is an arithmetic number, because the mean of its divisors is an integer number (2833563494700).

Almost surely, 2^{18890317085755} is an apocalyptic number.

18890317085755 is a deficient number, since it is larger than the sum of its proper divisors (3778190871845).

18890317085755 is a wasteful number, since it uses less digits than its factorization.

18890317085755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21242453.

The product of its (nonzero) digits is 84672000, while the sum is 67.

The spelling of 18890317085755 in words is "eighteen trillion, eight hundred ninety billion, three hundred seventeen million, eighty-five thousand, seven hundred fifty-five".