18377995876 has 6 divisors (see below), whose sum is σ = 32161492790. Its totient is φ = 9188997936.

The previous prime is 18377995847. The next prime is 18377995891. The reversal of 18377995876 is 67859977381.

It can be written as a sum of positive squares in only one way, i.e., 15768829476 + 2609166400 = 125574^2 + 51080^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2297249481 + ... + 2297249488.

Almost surely, 2^18377995876 is an apocalyptic number.

It is an amenable number.

18377995876 is a deficient number, since it is larger than the sum of its proper divisors (13783496914).

18377995876 is a wasteful number, since it uses less digits than its factorization.

18377995876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594498973 (or 4594498971 counting only the distinct ones).

The product of its digits is 160030080, while the sum is 70.

The spelling of 18377995876 in words is "eighteen billion, three hundred seventy-seven million, nine hundred ninety-five thousand, eight hundred seventy-six".