79465056389 has 2 divisors, whose sum is σ = 79465056390. Its totient is φ = 79465056388.

The previous prime is 79465056317. The next prime is 79465056421. The reversal of 79465056389 is 98365056497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77085080164 + 2379976225 = 277642^2 + 48785^2 .

It is an emirp because it is prime and its reverse (98365056497) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79465056389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79465055389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39732528194 + 39732528195.

It is an arithmetic number, because the mean of its divisors is an integer number (39732528195).

Almost surely, 2^79465056389 is an apocalyptic number.

It is an amenable number.

79465056389 is a deficient number, since it is larger than the sum of its proper divisors (1).

79465056389 is an equidigital number, since it uses as much as digits as its factorization.

79465056389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 62.

The spelling of 79465056389 in words is "seventy-nine billion, four hundred sixty-five million, fifty-six thousand, three hundred eighty-nine".