18089896319 has 4 divisors (see below), whose sum is σ = 19734432360. Its totient is φ = 16445360280.

The previous prime is 18089896289. The next prime is 18089896387. The reversal of 18089896319 is 91369898081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18089896319 - 2⁸ = 18089896063 is a prime.

It is a super-2 number, since 2×18089896319² (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 (18089898319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822268004 + ... + 822268025.

It is an arithmetic number, because the mean of its divisors is an integer number (4933608090).

Almost surely, 2^18089896319 is an apocalyptic number.

18089896319 is a deficient number, since it is larger than the sum of its proper divisors (1644536041).

18089896319 is a wasteful number, since it uses less digits than its factorization.

18089896319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644536040.

The product of its (nonzero) digits is 6718464, while the sum is 62.

The spelling of 18089896319 in words is "eighteen billion, eighty-nine million, eight hundred ninety-six thousand, three hundred nineteen".