18814880684 has 24 divisors (see below), whose sum is σ = 33179682816. Its totient is φ = 9335250000.

The previous prime is 18814880659. The next prime is 18814880723. The reversal of 18814880684 is 48608841881.

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, 237509 + ... + 306659.

It is an arithmetic number, because the mean of its divisors is an integer number (1382486784).

Almost surely, 2^18814880684 is an apocalyptic number.

It is an amenable number.

18814880684 is a deficient number, since it is larger than the sum of its proper divisors (14364802132).

18814880684 is a wasteful number, since it uses less digits than its factorization.

18814880684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69677 (or 69675 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 56.

The spelling of 18814880684 in words is "eighteen billion, eight hundred fourteen million, eight hundred eighty thousand, six hundred eighty-four".