676239932681 has 2 divisors, whose sum is σ = 676239932682. Its totient is φ = 676239932680.

The previous prime is 676239932663. The next prime is 676239932723. The reversal of 676239932681 is 186239932676.

676239932681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500895907600 + 175344025081 = 707740^2 + 418741^2 .

It is a cyclic number.

It is not a de Polignac number, because 676239932681 - 2²² = 676235738377 is a prime.

It is a super-2 number, since 2×676239932681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (676239932651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338119966340 + 338119966341.

It is an arithmetic number, because the mean of its divisors is an integer number (338119966341).

Almost surely, 2^676239932681 is an apocalyptic number.

It is an amenable number.

676239932681 is a deficient number, since it is larger than the sum of its proper divisors (1).

676239932681 is an equidigital number, since it uses as much as digits as its factorization.

676239932681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35271936, while the sum is 62.

The spelling of 676239932681 in words is "six hundred seventy-six billion, two hundred thirty-nine million, nine hundred thirty-two thousand, six hundred eighty-one".