8138658753 has 18 divisors (see below), whose sum is σ = 11800649094. Its totient is φ = 5405169792.

The previous prime is 8138658733. The next prime is 8138658757. The reversal of 8138658753 is 3578568318.

8138658753 is a `hidden beast` number, since 8 + 1 + 3 + 8 + 6 + 587 + 53 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 109244304 + 8029414449 = 10452^2 + 89607^2 .

It is not a de Polignac number, because 8138658753 - 2²⁸ = 7870223297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8138658753.

It is not an unprimeable number, because it can be changed into a prime (8138658757) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 645001 + ... + 657497.

Almost surely, 2^8138658753 is an apocalyptic number.

It is an amenable number.

8138658753 is a deficient number, since it is larger than the sum of its proper divisors (3661990341).

8138658753 is a wasteful number, since it uses less digits than its factorization.

8138658753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041 (or 12769 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 8138658753 is about 90214.5152012690. The cubic root of 8138658753 is about 2011.4887737534.

The spelling of 8138658753 in words is "eight billion, one hundred thirty-eight million, six hundred fifty-eight thousand, seven hundred fifty-three".