18597867876 has 243 divisors, whose sum is σ = 58398415257. Its totient is φ = 4974923520.

The previous prime is 18597867857. The next prime is 18597867877. The reversal of 18597867876 is 67876879581.

The square root of 18597867876 is 136374.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14479308900 + 4118558976 = 120330^2 + 64176^2 .

It is not an unprimeable number, because it can be changed into a prime (18597867877) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 97370941 + ... + 97371131.

Almost surely, 2^18597867876 is an apocalyptic number.

18597867876 is the 136374-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18597867876

18597867876 is an abundant number, since it is smaller than the sum of its proper divisors (39800547381).

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

18597867876 is a wasteful number, since it uses less digits than its factorization.

18597867876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 220 counting only the distinct ones).

The product of its digits is 284497920, while the sum is 72.

The spelling of 18597867876 in words is "eighteen billion, five hundred ninety-seven million, eight hundred sixty-seven thousand, eight hundred seventy-six".