677759122637 has 2 divisors, whose sum is σ = 677759122638. Its totient is φ = 677759122636.

The previous prime is 677759122609. The next prime is 677759122673. The reversal of 677759122637 is 736221957776.

It is a happy number.

Together with next prime (677759122673) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358377033316 + 319382089321 = 598646^2 + 565139^2 .

It is a cyclic number.

It is not a de Polignac number, because 677759122637 - 2¹⁴ = 677759106253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677759122637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677759128637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338879561318 + 338879561319.

It is an arithmetic number, because the mean of its divisors is an integer number (338879561319).

Almost surely, 2^677759122637 is an apocalyptic number.

It is an amenable number.

677759122637 is a deficient number, since it is larger than the sum of its proper divisors (1).

677759122637 is an equidigital number, since it uses as much as digits as its factorization.

677759122637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46675440, while the sum is 62.

The spelling of 677759122637 in words is "six hundred seventy-seven billion, seven hundred fifty-nine million, one hundred twenty-two thousand, six hundred thirty-seven".