79760615789 has 2 divisors, whose sum is σ = 79760615790. Its totient is φ = 79760615788.

The previous prime is 79760615747. The next prime is 79760615801. The reversal of 79760615789 is 98751606797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74392562500 + 5368053289 = 272750^2 + 73267^2 .

It is an emirp because it is prime and its reverse (98751606797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79760615789 - 2⁸ = 79760615533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79760615989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39880307894 + 39880307895.

It is an arithmetic number, because the mean of its divisors is an integer number (39880307895).

Almost surely, 2^79760615789 is an apocalyptic number.

It is an amenable number.

79760615789 is a deficient number, since it is larger than the sum of its proper divisors (1).

79760615789 is an equidigital number, since it uses as much as digits as its factorization.

79760615789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40007520, while the sum is 65.

The spelling of 79760615789 in words is "seventy-nine billion, seven hundred sixty million, six hundred fifteen thousand, seven hundred eighty-nine".