13017494639 has 2 divisors, whose sum is σ = 13017494640. Its totient is φ = 13017494638.

The previous prime is 13017494599. The next prime is 13017494701. The reversal of 13017494639 is 93649471031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13017494639 - 2²⁰ = 13016446063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13017494593 and 13017494602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13017094639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6508747319 + 6508747320.

It is an arithmetic number, because the mean of its divisors is an integer number (6508747320).

Almost surely, 2^13017494639 is an apocalyptic number.

13017494639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13017494639 is an equidigital number, since it uses as much as digits as its factorization.

13017494639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 13017494639 in words is "thirteen billion, seventeen million, four hundred ninety-four thousand, six hundred thirty-nine".