9639826234013 has 2 divisors, whose sum is σ = 9639826234014. Its totient is φ = 9639826234012.

The previous prime is 9639826234007. The next prime is 9639826234021. The reversal of 9639826234013 is 3104326289369.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7454002960804 + 2185823273209 = 2730202^2 + 1478453^2 .

It is a cyclic number.

It is not a de Polignac number, because 9639826234013 - 2²⁸ = 9639557798557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9639826234013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9639826236013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4819913117006 + 4819913117007.

It is an arithmetic number, because the mean of its divisors is an integer number (4819913117007).

Almost surely, 2^{9639826234013} is an apocalyptic number.

It is an amenable number.

9639826234013 is a deficient number, since it is larger than the sum of its proper divisors (1).

9639826234013 is an equidigital number, since it uses as much as digits as its factorization.

9639826234013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10077696, while the sum is 56.

The spelling of 9639826234013 in words is "nine trillion, six hundred thirty-nine billion, eight hundred twenty-six million, two hundred thirty-four thousand, thirteen".