18055394679 has 16 divisors (see below), whose sum is σ = 27540776960. Its totient is φ = 10306945440.

The previous prime is 18055394659. The next prime is 18055394683. The reversal of 18055394679 is 97649355081.

It is not a de Polignac number, because 18055394679 - 2¹¹ = 18055392631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18055394659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412984 + ... + 454605.

It is an arithmetic number, because the mean of its divisors is an integer number (1721298560).

Almost surely, 2^18055394679 is an apocalyptic number.

18055394679 is a deficient number, since it is larger than the sum of its proper divisors (9485382281).

18055394679 is an equidigital number, since it uses as much as digits as its factorization.

18055394679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868590.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 18055394679 in words is "eighteen billion, fifty-five million, three hundred ninety-four thousand, six hundred seventy-nine".