18320347695 has 32 divisors (see below), whose sum is σ = 31594719744. Its totient is φ = 9011433600.

The previous prime is 18320347663. The next prime is 18320347699. The reversal of 18320347695 is 59674302381.

It is not a de Polignac number, because 18320347695 - 2⁵ = 18320347663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18320347699) 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, 188230 + ... + 268460.

It is an arithmetic number, because the mean of its divisors is an integer number (987334992).

It is a 1-persistent number, because it is pandigital, but 2⋅18320347695 = 36640695390 is not.

Almost surely, 2^18320347695 is an apocalyptic number.

18320347695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18320347695 is a deficient number, since it is larger than the sum of its proper divisors (13274372049).

18320347695 is a wasteful number, since it uses less digits than its factorization.

18320347695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81423.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 18320347695 in words is "eighteen billion, three hundred twenty million, three hundred forty-seven thousand, six hundred ninety-five".