679707702643 has 2 divisors, whose sum is σ = 679707702644. Its totient is φ = 679707702642.

The previous prime is 679707702631. The next prime is 679707702649. The reversal of 679707702643 is 346207707976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679707702643 - 2⁹ = 679707702131 is a prime.

It is a super-2 number, since 2×679707702643² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679707702649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339853851321 + 339853851322.

It is an arithmetic number, because the mean of its divisors is an integer number (339853851322).

Almost surely, 2^679707702643 is an apocalyptic number.

679707702643 is a deficient number, since it is larger than the sum of its proper divisors (1).

679707702643 is an equidigital number, since it uses as much as digits as its factorization.

679707702643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18670176, while the sum is 58.

The spelling of 679707702643 in words is "six hundred seventy-nine billion, seven hundred seven million, seven hundred two thousand, six hundred forty-three".