8312345579 has 2 divisors, whose sum is σ = 8312345580. Its totient is φ = 8312345578.

The previous prime is 8312345543. The next prime is 8312345623. The reversal of 8312345579 is 9755432138.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8312345579 - 2⁸ = 8312345323 is a prime.

It is not a weakly prime, because it can be changed into another prime (8312345779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4156172789 + 4156172790.

It is an arithmetic number, because the mean of its divisors is an integer number (4156172790).

Almost surely, 2^8312345579 is an apocalyptic number.

8312345579 is a deficient number, since it is larger than the sum of its proper divisors (1).

8312345579 is an equidigital number, since it uses as much as digits as its factorization.

8312345579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The square root of 8312345579 is about 91172.0657822340. The cubic root of 8312345579 is about 2025.6972108386.

The spelling of 8312345579 in words is "eight billion, three hundred twelve million, three hundred forty-five thousand, five hundred seventy-nine".