18488028684 has 24 divisors (see below), whose sum is σ = 43143453808. Its totient is φ = 6162001920.

The previous prime is 18488028677. The next prime is 18488028697. The reversal of 18488028684 is 48682088481.

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, 36924 + ... + 195804.

Almost surely, 2^18488028684 is an apocalyptic number.

It is an amenable number.

18488028684 is an abundant number, since it is smaller than the sum of its proper divisors (24655425124).

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

18488028684 is a wasteful number, since it uses less digits than its factorization.

18488028684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168585 (or 168583 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 57.

The spelling of 18488028684 in words is "eighteen billion, four hundred eighty-eight million, twenty-eight thousand, six hundred eighty-four".