13018597639 has 2 divisors, whose sum is σ = 13018597640. Its totient is φ = 13018597638.

The previous prime is 13018597621. The next prime is 13018597643. The reversal of 13018597639 is 93679581031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13018597639 - 2⁵ = 13018597607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13018597699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6509298819 + 6509298820.

It is an arithmetic number, because the mean of its divisors is an integer number (6509298820).

Almost surely, 2^13018597639 is an apocalyptic number.

13018597639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13018597639 is an equidigital number, since it uses as much as digits as its factorization.

13018597639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 13018597639 in words is "thirteen billion, eighteen million, five hundred ninety-seven thousand, six hundred thirty-nine".