5777777771 has 2 divisors, whose sum is σ = 5777777772. Its totient is φ = 5777777770.

The previous prime is 5777777701. The next prime is 5777777791. The reversal of 5777777771 is 1777777775.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5777777771 is a prime.

It is not a weakly prime, because it can be changed into another prime (5777777701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2888888885 + 2888888886.

It is an arithmetic number, because the mean of its divisors is an integer number (2888888886).

Almost surely, 2^5777777771 is an apocalyptic number.

5777777771 is a deficient number, since it is larger than the sum of its proper divisors (1).

5777777771 is an equidigital number, since it uses as much as digits as its factorization.

5777777771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28824005, while the sum is 62.

The square root of 5777777771 is about 76011.6949620254. The cubic root of 5777777771 is about 1794.4042033274.

The spelling of 5777777771 in words is "five billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred seventy-one".