18460819765 has 16 divisors (see below), whose sum is σ = 22983713280. Its totient is φ = 14219674560.

The previous prime is 18460819747. The next prime is 18460819781. The reversal of 18460819765 is 56791806481.

It is not a de Polignac number, because 18460819765 - 2²⁵ = 18427265333 is a prime.

It is a congruent 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, 271755 + ... + 332824.

It is an arithmetic number, because the mean of its divisors is an integer number (1436482080).

Almost surely, 2^18460819765 is an apocalyptic number.

It is an amenable number.

18460819765 is a deficient number, since it is larger than the sum of its proper divisors (4522893515).

18460819765 is a wasteful number, since it uses less digits than its factorization.

18460819765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604812.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 18460819765 in words is "eighteen billion, four hundred sixty million, eight hundred nineteen thousand, seven hundred sixty-five".