18427979075 has 12 divisors (see below), whose sum is σ = 24928030248. Its totient is φ = 13402166400.

The previous prime is 18427979057. The next prime is 18427979099. The reversal of 18427979075 is 57097972481.

It is not a de Polignac number, because 18427979075 - 2⁸ = 18427978819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33505142 + ... + 33505691.

It is an arithmetic number, because the mean of its divisors is an integer number (2077335854).

Almost surely, 2^18427979075 is an apocalyptic number.

18427979075 is a deficient number, since it is larger than the sum of its proper divisors (6500051173).

18427979075 is a wasteful number, since it uses less digits than its factorization.

18427979075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67010854 (or 67010849 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 18427979075 in words is "eighteen billion, four hundred twenty-seven million, nine hundred seventy-nine thousand, seventy-five".