18758494084 has 24 divisors (see below), whose sum is σ = 36140227200. Its totient is φ = 8448360480.

The previous prime is 18758494039. The next prime is 18758494091. The reversal of 18758494084 is 48049485781.

It is a super-2 number, since 2×18758494084² (a number of 21 digits) contains 22 as substring.

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, 1950844 + ... + 1960435.

It is an arithmetic number, because the mean of its divisors is an integer number (1505842800).

Almost surely, 2^18758494084 is an apocalyptic number.

It is an amenable number.

18758494084 is a deficient number, since it is larger than the sum of its proper divisors (17381733116).

18758494084 is a wasteful number, since it uses less digits than its factorization.

18758494084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911403 (or 3911401 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 58.

The spelling of 18758494084 in words is "eighteen billion, seven hundred fifty-eight million, four hundred ninety-four thousand, eighty-four".