79469342861 has 2 divisors, whose sum is σ = 79469342862. Its totient is φ = 79469342860.

The previous prime is 79469342803. The next prime is 79469342891. The reversal of 79469342861 is 16824396497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73154020900 + 6315321961 = 270470^2 + 79469^2 .

It is an emirp because it is prime and its reverse (16824396497) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79469342861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79469342861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79469342891) 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, 39734671430 + 39734671431.

It is an arithmetic number, because the mean of its divisors is an integer number (39734671431).

Almost surely, 2^79469342861 is an apocalyptic number.

It is an amenable number.

79469342861 is a deficient number, since it is larger than the sum of its proper divisors (1).

79469342861 is an equidigital number, since it uses as much as digits as its factorization.

79469342861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 59.

The spelling of 79469342861 in words is "seventy-nine billion, four hundred sixty-nine million, three hundred forty-two thousand, eight hundred sixty-one".