18019332804 has 24 divisors (see below), whose sum is σ = 45867392928. Its totient is φ = 5460403840.

The previous prime is 18019332791. The next prime is 18019332853. The reversal of 18019332804 is 40823391081.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 68254917 + ... + 68255180.

It is an arithmetic number, because the mean of its divisors is an integer number (1911141372).

Almost surely, 2^18019332804 is an apocalyptic number.

It is an amenable number.

18019332804 is an abundant number, since it is smaller than the sum of its proper divisors (27848060124).

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

18019332804 is a wasteful number, since it uses less digits than its factorization.

18019332804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136510115 (or 136510113 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 18019332804 in words is "eighteen billion, nineteen million, three hundred thirty-two thousand, eight hundred four".