18379311319 has 16 divisors (see below), whose sum is σ = 18872663040. Its totient is φ = 17890470880.

The previous prime is 18379311317. The next prime is 18379311323. The reversal of 18379311319 is 91311397381.

It is a cyclic number.

It is not a de Polignac number, because 18379311319 - 2¹ = 18379311317 is a prime.

It is a super-2 number, since 2×18379311319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18379311317) 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, 14597712 + ... + 14598970.

It is an arithmetic number, because the mean of its divisors is an integer number (1179541440).

Almost surely, 2^18379311319 is an apocalyptic number.

18379311319 is a deficient number, since it is larger than the sum of its proper divisors (493351721).

18379311319 is a wasteful number, since it uses less digits than its factorization.

18379311319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750.

The product of its digits is 122472, while the sum is 46.

It can be divided in two parts, 183793 and 11319, that added together give a cube (195112 = 58³).

The spelling of 18379311319 in words is "eighteen billion, three hundred seventy-nine million, three hundred eleven thousand, three hundred nineteen".