7636874813 has 2 divisors, whose sum is σ = 7636874814. Its totient is φ = 7636874812.

The previous prime is 7636874771. The next prime is 7636874857. The reversal of 7636874813 is 3184786367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4007776249 + 3629098564 = 63307^2 + 60242^2 .

It is a cyclic number.

It is not a de Polignac number, because 7636874813 - 2²² = 7632680509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7636874873) 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 as a sum of consecutive naturals, namely, 3818437406 + 3818437407.

It is an arithmetic number, because the mean of its divisors is an integer number (3818437407).

Almost surely, 2^7636874813 is an apocalyptic number.

7636874813 is the 46712-nd centered heptagonal number.

It is an amenable number.

7636874813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7636874813 is an equidigital number, since it uses as much as digits as its factorization.

7636874813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 53.

The square root of 7636874813 is about 87389.2145118607. The cubic root of 7636874813 is about 1969.2698139044.

The spelling of 7636874813 in words is "seven billion, six hundred thirty-six million, eight hundred seventy-four thousand, eight hundred thirteen".