7714771745977 has 2 divisors, whose sum is σ = 7714771745978. Its totient is φ = 7714771745976.

The previous prime is 7714771745921. The next prime is 7714771746049. The reversal of 7714771745977 is 7795471774177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7709818542336 + 4953203641 = 2776656^2 + 70379^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7714771745977 is a prime.

It is not a weakly prime, because it can be changed into another prime (7714271745977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3857385872988 + 3857385872989.

It is an arithmetic number, because the mean of its divisors is an integer number (3857385872989).

Almost surely, 2^{7714771745977} is an apocalyptic number.

It is an amenable number.

7714771745977 is a deficient number, since it is larger than the sum of its proper divisors (1).

7714771745977 is an equidigital number, since it uses as much as digits as its factorization.

7714771745977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592950960, while the sum is 73.

The spelling of 7714771745977 in words is "seven trillion, seven hundred fourteen billion, seven hundred seventy-one million, seven hundred forty-five thousand, nine hundred seventy-seven".