676981972386 has 24 divisors (see below), whose sum is σ = 1494469639260. Its totient is φ = 221402908896.

The previous prime is 676981972369. The next prime is 676981972393. The reversal of 676981972386 is 683279189676.

676981972386 is a `hidden beast` number, since 6 + 76 + 98 + 1 + 97 + 2 + 386 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 647357022225 + 29624950161 = 804585^2 + 172119^2 .

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, 354811401 + ... + 354813308.

Almost surely, 2^676981972386 is an apocalyptic number.

676981972386 is an abundant number, since it is smaller than the sum of its proper divisors (817487666874).

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

676981972386 is a wasteful number, since it uses less digits than its factorization.

676981972386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709624770 (or 709624767 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 72.

The spelling of 676981972386 in words is "six hundred seventy-six billion, nine hundred eighty-one million, nine hundred seventy-two thousand, three hundred eighty-six".