679776677976 has 128 divisors (see below), whose sum is σ = 1912221043200. Its totient is φ = 199564692480.

The previous prime is 679776677963. The next prime is 679776678029.

679776677976 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2126605 + ... + 2425283.

It is an arithmetic number, because the mean of its divisors is an integer number (14939226900).

Almost surely, 2^679776677976 is an apocalyptic number.

679776677976 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679776677976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956110521600).

679776677976 is an abundant number, since it is smaller than the sum of its proper divisors (1232444365224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679776677976 is a wasteful number, since it uses less digits than its factorization.

679776677976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298969 (or 298965 counting only the distinct ones).

The product of its digits is 12350321424, while the sum is 84.

The spelling of 679776677976 in words is "six hundred seventy-nine billion, seven hundred seventy-six million, six hundred seventy-seven thousand, nine hundred seventy-six".