18806662875 has 128 divisors (see below), whose sum is σ = 42018342912. Its totient is φ = 7214400000.

The previous prime is 18806662841. The next prime is 18806662907. The reversal of 18806662875 is 57826660881.

It is a happy number.

It is not a de Polignac number, because 18806662875 - 2¹⁰ = 18806661851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 350325 + ... + 400425.

It is an arithmetic number, because the mean of its divisors is an integer number (328268304).

Almost surely, 2^18806662875 is an apocalyptic number.

18806662875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18806662875 is an abundant number, since it is smaller than the sum of its proper divisors (23211680037).

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

18806662875 is a wasteful number, since it uses less digits than its factorization.

18806662875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50150 (or 50140 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 18806662875 in words is "eighteen billion, eight hundred six million, six hundred sixty-two thousand, eight hundred seventy-five".