13963207639 has 2 divisors, whose sum is σ = 13963207640. Its totient is φ = 13963207638.

The previous prime is 13963207633. The next prime is 13963207729. The reversal of 13963207639 is 93670236931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13963207639 - 2⁵ = 13963207607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13963207592 and 13963207601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13963207633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6981603819 + 6981603820.

It is an arithmetic number, because the mean of its divisors is an integer number (6981603820).

Almost surely, 2^13963207639 is an apocalyptic number.

13963207639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13963207639 is an equidigital number, since it uses as much as digits as its factorization.

13963207639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The spelling of 13963207639 in words is "thirteen billion, nine hundred sixty-three million, two hundred seven thousand, six hundred thirty-nine".