677757777713 has 2 divisors, whose sum is σ = 677757777714. Its totient is φ = 677757777712.

The previous prime is 677757777629. The next prime is 677757777733. The reversal of 677757777713 is 317777757776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676980092944 + 777684769 = 822788^2 + 27887^2 .

It is a cyclic number.

It is not a de Polignac number, because 677757777713 - 2³² = 673462810417 is a prime.

It is not a weakly prime, because it can be changed into another prime (677757777733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338878888856 + 338878888857.

It is an arithmetic number, because the mean of its divisors is an integer number (338878888857).

Almost surely, 2^677757777713 is an apocalyptic number.

It is an amenable number.

677757777713 is a deficient number, since it is larger than the sum of its proper divisors (1).

677757777713 is an equidigital number, since it uses as much as digits as its factorization.

677757777713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518832090, while the sum is 71.

The spelling of 677757777713 in words is "six hundred seventy-seven billion, seven hundred fifty-seven million, seven hundred seventy-seven thousand, seven hundred thirteen".