676981972384 has 48 divisors (see below), whose sum is σ = 1366104599496. Its totient is φ = 330044313600.

The previous prime is 676981972369. The next prime is 676981972393. The reversal of 676981972384 is 483279189676.

It is a happy number.

676981972384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 398438688400 + 278543283984 = 631220^2 + 527772^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2136004 + ... + 2432380.

Almost surely, 2^676981972384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676981972384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683052299748).

676981972384 is an abundant number, since it is smaller than the sum of its proper divisors (689122627112).

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

676981972384 is a wasteful number, since it uses less digits than its factorization.

676981972384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298169 (or 298161 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 70.

The spelling of 676981972384 in words is "six hundred seventy-six billion, nine hundred eighty-one million, nine hundred seventy-two thousand, three hundred eighty-four".