18798355904 has 28 divisors (see below), whose sum is σ = 37333894344. Its totient is φ = 9391390464.

The previous prime is 18798355903. The next prime is 18798355937. The reversal of 18798355904 is 40955389781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18798355903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43442 + ... + 198705.

Almost surely, 2^18798355904 is an apocalyptic number.

It is an amenable number.

18798355904 is a deficient number, since it is larger than the sum of its proper divisors (18535538440).

18798355904 is a wasteful number, since it uses less digits than its factorization.

18798355904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243372 (or 243362 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 18798355904 in words is "eighteen billion, seven hundred ninety-eight million, three hundred fifty-five thousand, nine hundred four".