23836013639 has 2 divisors, whose sum is σ = 23836013640. Its totient is φ = 23836013638.

The previous prime is 23836013611. The next prime is 23836013659. The reversal of 23836013639 is 93631063832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23836013639 - 2²⁴ = 23819236423 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23836013639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23836013659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11918006819 + 11918006820.

It is an arithmetic number, because the mean of its divisors is an integer number (11918006820).

Almost surely, 2^23836013639 is an apocalyptic number.

23836013639 is a deficient number, since it is larger than the sum of its proper divisors (1).

23836013639 is an equidigital number, since it uses as much as digits as its factorization.

23836013639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 23836013639 in words is "twenty-three billion, eight hundred thirty-six million, thirteen thousand, six hundred thirty-nine".