13239224639 has 2 divisors, whose sum is σ = 13239224640. Its totient is φ = 13239224638.

The previous prime is 13239224629. The next prime is 13239224659. The reversal of 13239224639 is 93642293231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13239224639 is a prime.

It is a super-3 number, since 3×13239224639³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13239224639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13239224629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6619612319 + 6619612320.

It is an arithmetic number, because the mean of its divisors is an integer number (6619612320).

Almost surely, 2^13239224639 is an apocalyptic number.

13239224639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13239224639 is an equidigital number, since it uses as much as digits as its factorization.

13239224639 is an evil number, because the sum of its binary digits is even.

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

The spelling of 13239224639 in words is "thirteen billion, two hundred thirty-nine million, two hundred twenty-four thousand, six hundred thirty-nine".