677007700709 has 2 divisors, whose sum is σ = 677007700710. Its totient is φ = 677007700708.

The previous prime is 677007700687. The next prime is 677007700777. The reversal of 677007700709 is 907007700776.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602054950084 + 74952750625 = 775922^2 + 273775^2 .

It is a cyclic number.

It is not a de Polignac number, because 677007700709 - 2¹² = 677007696613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677007730709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338503850354 + 338503850355.

It is an arithmetic number, because the mean of its divisors is an integer number (338503850355).

Almost surely, 2^677007700709 is an apocalyptic number.

It is an amenable number.

677007700709 is a deficient number, since it is larger than the sum of its proper divisors (1).

677007700709 is an equidigital number, since it uses as much as digits as its factorization.

677007700709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907578, while the sum is 50.

The spelling of 677007700709 in words is "six hundred seventy-seven billion, seven million, seven hundred thousand, seven hundred nine".