676544625257 has 2 divisors, whose sum is σ = 676544625258. Its totient is φ = 676544625256.

The previous prime is 676544625241. The next prime is 676544625371. The reversal of 676544625257 is 752526445676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662548788841 + 13995836416 = 813971^2 + 118304^2 .

It is a cyclic number.

It is not a de Polignac number, because 676544625257 - 2⁴ = 676544625241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 676544625196 and 676544625205.

It is not a weakly prime, because it can be changed into another prime (676544628257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338272312628 + 338272312629.

It is an arithmetic number, because the mean of its divisors is an integer number (338272312629).

Almost surely, 2^676544625257 is an apocalyptic number.

It is an amenable number.

676544625257 is a deficient number, since it is larger than the sum of its proper divisors (1).

676544625257 is an equidigital number, since it uses as much as digits as its factorization.

676544625257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672000, while the sum is 59.

The spelling of 676544625257 in words is "six hundred seventy-six billion, five hundred forty-four million, six hundred twenty-five thousand, two hundred fifty-seven".