679894476871 has 2 divisors, whose sum is σ = 679894476872. Its totient is φ = 679894476870.

The previous prime is 679894476841. The next prime is 679894476901. The reversal of 679894476871 is 178674498976.

It is a balanced prime because it is at equal distance from previous prime (679894476841) and next prime (679894476901).

It is a cyclic number.

It is not a de Polignac number, because 679894476871 - 2²³ = 679886088263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679894476841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339947238435 + 339947238436.

It is an arithmetic number, because the mean of its divisors is an integer number (339947238436).

Almost surely, 2^679894476871 is an apocalyptic number.

679894476871 is a deficient number, since it is larger than the sum of its proper divisors (1).

679894476871 is an equidigital number, since it uses as much as digits as its factorization.

679894476871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1024192512, while the sum is 76.

The spelling of 679894476871 in words is "six hundred seventy-nine billion, eight hundred ninety-four million, four hundred seventy-six thousand, eight hundred seventy-one".