79689498697 has 2 divisors, whose sum is σ = 79689498698. Its totient is φ = 79689498696.

The previous prime is 79689498689. The next prime is 79689498727.

It is a happy number.

79689498697 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77879506761 + 1809991936 = 279069^2 + 42544^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 79689498697 - 2³ = 79689498689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79689498697.

It is not a weakly prime, because it can be changed into another prime (79689498397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39844749348 + 39844749349.

It is an arithmetic number, because the mean of its divisors is an integer number (39844749349).

Almost surely, 2^79689498697 is an apocalyptic number.

It is an amenable number.

79689498697 is a deficient number, since it is larger than the sum of its proper divisors (1).

79689498697 is an equidigital number, since it uses as much as digits as its factorization.

79689498697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2962842624, while the sum is 82.

The spelling of 79689498697 in words is "seventy-nine billion, six hundred eighty-nine million, four hundred ninety-eight thousand, six hundred ninety-seven".