18255734706 has 32 divisors (see below), whose sum is σ = 40121448768. Its totient is φ = 5491658240.

The previous prime is 18255734647. The next prime is 18255734711. The reversal of 18255734706 is 60743755281.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000455 + ... + 1018538.

It is an arithmetic number, because the mean of its divisors is an integer number (1253795274).

Almost surely, 2^18255734706 is an apocalyptic number.

18255734706 is an abundant number, since it is smaller than the sum of its proper divisors (21865714062).

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

18255734706 is a wasteful number, since it uses less digits than its factorization.

18255734706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019146.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 18255734706 in words is "eighteen billion, two hundred fifty-five million, seven hundred thirty-four thousand, seven hundred six".