18673427505164 has 48 divisors (see below), whose sum is σ = 34424118328320. Its totient is φ = 8838702011520.

The previous prime is 18673427505059. The next prime is 18673427505167. The reversal of 18673427505164 is 46150572437681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18673427505167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608299064 + ... + 608329760.

It is an arithmetic number, because the mean of its divisors is an integer number (717169131840).

Almost surely, 2^{18673427505164} is an apocalyptic number.

It is an amenable number.

18673427505164 is a deficient number, since it is larger than the sum of its proper divisors (15750690823156).

18673427505164 is a wasteful number, since it uses less digits than its factorization.

18673427505164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36438 (or 36436 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 18673427505164 in words is "eighteen trillion, six hundred seventy-three billion, four hundred twenty-seven million, five hundred five thousand, one hundred sixty-four".