18416960972 has 12 divisors (see below), whose sum is σ = 32239593960. Its totient is φ = 9205648416.

The previous prime is 18416960957. The next prime is 18416960977. The reversal of 18416960972 is 27906961481.

It is not an unprimeable number, because it can be changed into a prime (18416960977) 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, 693353 + ... + 719424.

It is an arithmetic number, because the mean of its divisors is an integer number (2686632830).

Almost surely, 2^18416960972 is an apocalyptic number.

It is an amenable number.

18416960972 is a deficient number, since it is larger than the sum of its proper divisors (13822632988).

18416960972 is a wasteful number, since it uses less digits than its factorization.

18416960972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416040 (or 1416038 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 18416960972 in words is "eighteen billion, four hundred sixteen million, nine hundred sixty thousand, nine hundred seventy-two".