79228396879 has 2 divisors, whose sum is σ = 79228396880. Its totient is φ = 79228396878.

The previous prime is 79228396867. The next prime is 79228396883. The reversal of 79228396879 is 97869382297.

It is a strong prime.

It is an emirp because it is prime and its reverse (97869382297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79228396879 - 2²³ = 79220008271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79228396579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39614198439 + 39614198440.

It is an arithmetic number, because the mean of its divisors is an integer number (39614198440).

Almost surely, 2^79228396879 is an apocalyptic number.

79228396879 is a deficient number, since it is larger than the sum of its proper divisors (1).

79228396879 is an equidigital number, since it uses as much as digits as its factorization.

79228396879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164602368, while the sum is 70.

The spelling of 79228396879 in words is "seventy-nine billion, two hundred twenty-eight million, three hundred ninety-six thousand, eight hundred seventy-nine".