18853556690404 has 12 divisors (see below), whose sum is σ = 33036406909884. Its totient is φ = 9414583287584.

The previous prime is 18853556690389. The next prime is 18853556690411. The reversal of 18853556690404 is 40409665535881.

It can be written as a sum of positive squares in 2 ways, for example, as 3856510440000 + 14997046250404 = 1963800^2 + 3872602^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3048760927 + ... + 3048767110.

It is an arithmetic number, because the mean of its divisors is an integer number (2753033909157).

Almost surely, 2^{18853556690404} is an apocalyptic number.

It is an amenable number.

18853556690404 is a deficient number, since it is larger than the sum of its proper divisors (14182850219480).

18853556690404 is a wasteful number, since it uses less digits than its factorization.

18853556690404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097528814 (or 6097528812 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 18853556690404 in words is "eighteen trillion, eight hundred fifty-three billion, five hundred fifty-six million, six hundred ninety thousand, four hundred four".