677954596577 has 2 divisors, whose sum is σ = 677954596578. Its totient is φ = 677954596576.

The previous prime is 677954596573. The next prime is 677954596589. The reversal of 677954596577 is 775695459776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567545262736 + 110409333841 = 753356^2 + 332279^2 .

It is a cyclic number.

It is not a de Polignac number, because 677954596577 - 2² = 677954596573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677954596498 and 677954596507.

It is not a weakly prime, because it can be changed into another prime (677954596573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338977298288 + 338977298289.

It is an arithmetic number, because the mean of its divisors is an integer number (338977298289).

Almost surely, 2^677954596577 is an apocalyptic number.

It is an amenable number.

677954596577 is a deficient number, since it is larger than the sum of its proper divisors (1).

677954596577 is an equidigital number, since it uses as much as digits as its factorization.

677954596577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3500658000, while the sum is 77.

The spelling of 677954596577 in words is "six hundred seventy-seven billion, nine hundred fifty-four million, five hundred ninety-six thousand, five hundred seventy-seven".