79223094479 has 2 divisors, whose sum is σ = 79223094480. Its totient is φ = 79223094478.

The previous prime is 79223094439. The next prime is 79223094491. The reversal of 79223094479 is 97449032297.

It is a strong prime.

It is an emirp because it is prime and its reverse (97449032297) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79223094479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79223094439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39611547239 + 39611547240.

It is an arithmetic number, because the mean of its divisors is an integer number (39611547240).

Almost surely, 2^79223094479 is an apocalyptic number.

79223094479 is a deficient number, since it is larger than the sum of its proper divisors (1).

79223094479 is an equidigital number, since it uses as much as digits as its factorization.

79223094479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 79223094479 in words is "seventy-nine billion, two hundred twenty-three million, ninety-four thousand, four hundred seventy-nine".