18495482239 has 16 divisors (see below), whose sum is σ = 20324691072. Its totient is φ = 16725316608.

The previous prime is 18495482237. The next prime is 18495482273. The reversal of 18495482239 is 93228459481.

It is a happy number.

It is not a de Polignac number, because 18495482239 - 2¹ = 18495482237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18495482239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18495482233) 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, 443754 + ... + 483640.

It is an arithmetic number, because the mean of its divisors is an integer number (1270293192).

Almost surely, 2^18495482239 is an apocalyptic number.

18495482239 is a deficient number, since it is larger than the sum of its proper divisors (1829208833).

18495482239 is a wasteful number, since it uses less digits than its factorization.

18495482239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40626.

The product of its digits is 4976640, while the sum is 55.

The spelling of 18495482239 in words is "eighteen billion, four hundred ninety-five million, four hundred eighty-two thousand, two hundred thirty-nine".