18696327453 has 12 divisors (see below), whose sum is σ = 27273191868. Its totient is φ = 12340809600.

The previous prime is 18696327443. The next prime is 18696327491. The reversal of 18696327453 is 35472369681.

18696327453 is a `hidden beast` number, since 1 + 86 + 96 + 3 + 27 + 453 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13981170564 + 4715156889 = 118242^2 + 68667^2 .

It is not a de Polignac number, because 18696327453 - 2⁸ = 18696327197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18696327453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18696327443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10283100 + ... + 10284917.

It is an arithmetic number, because the mean of its divisors is an integer number (2272765989).

Almost surely, 2^18696327453 is an apocalyptic number.

It is an amenable number.

18696327453 is a deficient number, since it is larger than the sum of its proper divisors (8576864415).

18696327453 is a wasteful number, since it uses less digits than its factorization.

18696327453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20568124 (or 20568121 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 18696327453 in words is "eighteen billion, six hundred ninety-six million, three hundred twenty-seven thousand, four hundred fifty-three".