679297657607431 has 2 divisors, whose sum is σ = 679297657607432. Its totient is φ = 679297657607430.

The previous prime is 679297657607399. The next prime is 679297657607447. The reversal of 679297657607431 is 134706756792976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679297657607431 - 2⁵ = 679297657607399 is a prime.

It is a super-2 number, since 2×679297657607431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679297657607131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339648828803715 + 339648828803716.

It is an arithmetic number, because the mean of its divisors is an integer number (339648828803716).

Almost surely, 2^{679297657607431} is an apocalyptic number.

679297657607431 is a deficient number, since it is larger than the sum of its proper divisors (1).

679297657607431 is an equidigital number, since it uses as much as digits as its factorization.

679297657607431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040947520, while the sum is 79.

The spelling of 679297657607431 in words is "six hundred seventy-nine trillion, two hundred ninety-seven billion, six hundred fifty-seven million, six hundred seven thousand, four hundred thirty-one".