917079965939 has 2 divisors, whose sum is σ = 917079965940. Its totient is φ = 917079965938.

The previous prime is 917079965909. The next prime is 917079965957. The reversal of 917079965939 is 939569970719.

917079965939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-917079965939 is a prime.

It is not a weakly prime, because it can be changed into another prime (917079965909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458539982969 + 458539982970.

It is an arithmetic number, because the mean of its divisors is an integer number (458539982970).

Almost surely, 2^917079965939 is an apocalyptic number.

917079965939 is a deficient number, since it is larger than the sum of its proper divisors (1).

917079965939 is an equidigital number, since it uses as much as digits as its factorization.

917079965939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 260406090, while the sum is 74.

The spelling of 917079965939 in words is "nine hundred seventeen billion, seventy-nine million, nine hundred sixty-five thousand, nine hundred thirty-nine".