18874870808 has 8 divisors (see below), whose sum is σ = 35390382780. Its totient is φ = 9437435400.

The previous prime is 18874870787. The next prime is 18874870853. The reversal of 18874870808 is 80807847881.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1179679418 + ... + 1179679433.

Almost surely, 2^18874870808 is an apocalyptic number.

It is an amenable number.

18874870808 is a deficient number, since it is larger than the sum of its proper divisors (16515511972).

18874870808 is a wasteful number, since it uses less digits than its factorization.

18874870808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359358857 (or 2359358853 counting only the distinct ones).

The product of its (nonzero) digits is 6422528, while the sum is 59.

The spelling of 18874870808 in words is "eighteen billion, eight hundred seventy-four million, eight hundred seventy thousand, eight hundred eight".