18318036695 has 16 divisors (see below), whose sum is σ = 25227002880. Its totient is φ = 12508377504.

The previous prime is 18318036637. The next prime is 18318036697. The reversal of 18318036695 is 59663081381.

It is a happy number.

It is not a de Polignac number, because 18318036695 - 2¹⁶ = 18317971159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18318036697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086557 + ... + 1103286.

It is an arithmetic number, because the mean of its divisors is an integer number (1576687680).

Almost surely, 2^18318036695 is an apocalyptic number.

18318036695 is a deficient number, since it is larger than the sum of its proper divisors (6908966185).

18318036695 is a wasteful number, since it uses less digits than its factorization.

18318036695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190094.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 18318036695 in words is "eighteen billion, three hundred eighteen million, thirty-six thousand, six hundred ninety-five".