18705742795 has 8 divisors (see below), whose sum is σ = 23422843296. Its totient is φ = 14313959616.

The previous prime is 18705742729. The next prime is 18705742843. The reversal of 18705742795 is 59724750781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18705742795 - 2⁷ = 18705742667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81329202 + ... + 81329431.

It is an arithmetic number, because the mean of its divisors is an integer number (2927855412).

Almost surely, 2^18705742795 is an apocalyptic number.

18705742795 is a deficient number, since it is larger than the sum of its proper divisors (4717100501).

18705742795 is a wasteful number, since it uses less digits than its factorization.

18705742795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162658661.

The product of its (nonzero) digits is 4939200, while the sum is 55.

The spelling of 18705742795 in words is "eighteen billion, seven hundred five million, seven hundred forty-two thousand, seven hundred ninety-five".