79960839967 has 2 divisors, whose sum is σ = 79960839968. Its totient is φ = 79960839966.

The previous prime is 79960839953. The next prime is 79960840009. The reversal of 79960839967 is 76993806997.

It is a weak prime.

It is an emirp because it is prime and its reverse (76993806997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79960839967 - 2³⁵ = 45601101599 is a prime.

It is a super-2 number, since 2×79960839967² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79960839967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79960339967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39980419983 + 39980419984.

It is an arithmetic number, because the mean of its divisors is an integer number (39980419984).

Almost surely, 2^79960839967 is an apocalyptic number.

79960839967 is a deficient number, since it is larger than the sum of its proper divisors (1).

79960839967 is an equidigital number, since it uses as much as digits as its factorization.

79960839967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 277766496, while the sum is 73.

The spelling of 79960839967 in words is "seventy-nine billion, nine hundred sixty million, eight hundred thirty-nine thousand, nine hundred sixty-seven".