18901795008 has 28 divisors (see below), whose sum is σ = 50010999800. Its totient is φ = 6300598272.

The previous prime is 18901795007. The next prime is 18901795021. The reversal of 18901795008 is 80059710981.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (18901795007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49223233 + ... + 49223616.

Almost surely, 2^18901795008 is an apocalyptic number.

It is an amenable number.

18901795008 is an abundant number, since it is smaller than the sum of its proper divisors (31109204792).

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

18901795008 is an equidigital number, since it uses as much as digits as its factorization.

18901795008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98446864 (or 98446854 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 48.

The spelling of 18901795008 in words is "eighteen billion, nine hundred one million, seven hundred ninety-five thousand, eight".