18388900677835 has 16 divisors (see below), whose sum is σ = 22072752580032. Its totient is φ = 14707073305600.

The previous prime is 18388900677787. The next prime is 18388900677853. The reversal of 18388900677835 is 53877600988381.

It is not a de Polignac number, because 18388900677835 - 2¹⁵ = 18388900645067 is a prime.

It is a Duffinian number.

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, 305600922 + ... + 305661088.

It is an arithmetic number, because the mean of its divisors is an integer number (1379547036252).

Almost surely, 2^{18388900677835} is an apocalyptic number.

18388900677835 is a deficient number, since it is larger than the sum of its proper divisors (3683851902197).

18388900677835 is an equidigital number, since it uses as much as digits as its factorization.

18388900677835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75974.

The product of its (nonzero) digits is 487710720, while the sum is 73.

The spelling of 18388900677835 in words is "eighteen trillion, three hundred eighty-eight billion, nine hundred million, six hundred seventy-seven thousand, eight hundred thirty-five".