679776677975 has 12 divisors (see below), whose sum is σ = 863482181520. Its totient is φ = 530557406400.

The previous prime is 679776677963. The next prime is 679776678029. The reversal of 679776677975 is 579776677976.

It is not a de Polignac number, because 679776677975 - 2⁴ = 679776677959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679776677893 and 679776677902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331597355 + ... + 331599404.

It is an arithmetic number, because the mean of its divisors is an integer number (71956848460).

Almost surely, 2^679776677975 is an apocalyptic number.

679776677975 is a deficient number, since it is larger than the sum of its proper divisors (183705503545).

679776677975 is a wasteful number, since it uses less digits than its factorization.

679776677975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663196810 (or 663196805 counting only the distinct ones).

The product of its digits is 10291934520, while the sum is 83.

Subtracting from 679776677975 its reverse (579776677976), we obtain a palindrome (99999999999).

The spelling of 679776677975 in words is "six hundred seventy-nine billion, seven hundred seventy-six million, six hundred seventy-seven thousand, nine hundred seventy-five".