18042690075 has 24 divisors (see below), whose sum is σ = 29916591168. Its totient is φ = 9595022880.

The previous prime is 18042690067. The next prime is 18042690089. The reversal of 18042690075 is 57009624081.

It is not a de Polignac number, because 18042690075 - 2³ = 18042690067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320617 + ... + 372666.

It is an arithmetic number, because the mean of its divisors is an integer number (1246524632).

Almost surely, 2^18042690075 is an apocalyptic number.

18042690075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18042690075 is a deficient number, since it is larger than the sum of its proper divisors (11873901093).

18042690075 is a wasteful number, since it uses less digits than its factorization.

18042690075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693643 (or 693638 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 18042690075 in words is "eighteen billion, forty-two million, six hundred ninety thousand, seventy-five".