679443646463 has 2 divisors, whose sum is σ = 679443646464. Its totient is φ = 679443646462.

The previous prime is 679443646397. The next prime is 679443646501. The reversal of 679443646463 is 364646344976.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679443646463 - 2²⁶ = 679376537599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679443646396 and 679443646405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679443646663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339721823231 + 339721823232.

It is an arithmetic number, because the mean of its divisors is an integer number (339721823232).

Almost surely, 2^679443646463 is an apocalyptic number.

679443646463 is a deficient number, since it is larger than the sum of its proper divisors (1).

679443646463 is an equidigital number, since it uses as much as digits as its factorization.

679443646463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188116992, while the sum is 62.

The spelling of 679443646463 in words is "six hundred seventy-nine billion, four hundred forty-three million, six hundred forty-six thousand, four hundred sixty-three".