14038939639 has 2 divisors, whose sum is σ = 14038939640. Its totient is φ = 14038939638.

The previous prime is 14038939597. The next prime is 14038939741. The reversal of 14038939639 is 93693983041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14038939639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14038939639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14038939039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7019469819 + 7019469820.

It is an arithmetic number, because the mean of its divisors is an integer number (7019469820).

Almost surely, 2^14038939639 is an apocalyptic number.

14038939639 is a deficient number, since it is larger than the sum of its proper divisors (1).

14038939639 is an equidigital number, since it uses as much as digits as its factorization.

14038939639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 55.

The spelling of 14038939639 in words is "fourteen billion, thirty-eight million, nine hundred thirty-nine thousand, six hundred thirty-nine".