18876355868 has 12 divisors (see below), whose sum is σ = 33035487072. Its totient is φ = 9437645280.

The previous prime is 18876355859. The next prime is 18876355891. The reversal of 18876355868 is 86855367881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47273 + ... + 199968.

It is an arithmetic number, because the mean of its divisors is an integer number (2752957256).

Almost surely, 2^18876355868 is an apocalyptic number.

It is an amenable number.

18876355868 is a deficient number, since it is larger than the sum of its proper divisors (14159131204).

18876355868 is a wasteful number, since it uses less digits than its factorization.

18876355868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266332 (or 266330 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 65.

The spelling of 18876355868 in words is "eighteen billion, eight hundred seventy-six million, three hundred fifty-five thousand, eight hundred sixty-eight".