64960842239 has 2 divisors, whose sum is σ = 64960842240. Its totient is φ = 64960842238.

The previous prime is 64960842227. The next prime is 64960842241. The reversal of 64960842239 is 93224806946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64960842239 - 2²⁸ = 64692406783 is a prime.

It is a super-2 number, since 2×64960842239² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 64960842241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64960842259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32480421119 + 32480421120.

It is an arithmetic number, because the mean of its divisors is an integer number (32480421120).

Almost surely, 2^64960842239 is an apocalyptic number.

64960842239 is a deficient number, since it is larger than the sum of its proper divisors (1).

64960842239 is an equidigital number, since it uses as much as digits as its factorization.

64960842239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 64960842239 in words is "sixty-four billion, nine hundred sixty million, eight hundred forty-two thousand, two hundred thirty-nine".