77697257711 has 2 divisors, whose sum is σ = 77697257712. Its totient is φ = 77697257710.

The previous prime is 77697257699. The next prime is 77697257713. The reversal of 77697257711 is 11775279677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77697257711 - 2³⁴ = 60517388527 is a prime.

Together with 77697257713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77697257713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38848628855 + 38848628856.

It is an arithmetic number, because the mean of its divisors is an integer number (38848628856).

Almost surely, 2^77697257711 is an apocalyptic number.

77697257711 is a deficient number, since it is larger than the sum of its proper divisors (1).

77697257711 is an equidigital number, since it uses as much as digits as its factorization.

77697257711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9075780, while the sum is 59.

The spelling of 77697257711 in words is "seventy-seven billion, six hundred ninety-seven million, two hundred fifty-seven thousand, seven hundred eleven".