18365127699 has 32 divisors (see below), whose sum is σ = 26337129984. Its totient is φ = 11354999040.

The previous prime is 18365127619. The next prime is 18365127701. The reversal of 18365127699 is 99672156381.

It is not a de Polignac number, because 18365127699 - 2¹² = 18365123603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18365127619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383889 + ... + 429069.

It is an arithmetic number, because the mean of its divisors is an integer number (823035312).

Almost surely, 2^18365127699 is an apocalyptic number.

18365127699 is a deficient number, since it is larger than the sum of its proper divisors (7972002285).

18365127699 is a wasteful number, since it uses less digits than its factorization.

18365127699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45387.

The product of its digits is 4898880, while the sum is 57.

The spelling of 18365127699 in words is "eighteen billion, three hundred sixty-five million, one hundred twenty-seven thousand, six hundred ninety-nine".