16913576639 has 2 divisors, whose sum is σ = 16913576640. Its totient is φ = 16913576638.

The previous prime is 16913576629. The next prime is 16913576683. The reversal of 16913576639 is 93667531961.

It is a weak prime.

It is an emirp because it is prime and its reverse (93667531961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16913576639 - 2⁴ = 16913576623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16913576609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8456788319 + 8456788320.

It is an arithmetic number, because the mean of its divisors is an integer number (8456788320).

Almost surely, 2^16913576639 is an apocalyptic number.

16913576639 is a deficient number, since it is larger than the sum of its proper divisors (1).

16913576639 is an equidigital number, since it uses as much as digits as its factorization.

16913576639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 56.

The spelling of 16913576639 in words is "sixteen billion, nine hundred thirteen million, five hundred seventy-six thousand, six hundred thirty-nine".