7776256077 has 6 divisors (see below), whose sum is σ = 11232369902. Its totient is φ = 5184170712.

The previous prime is 7776256073. The next prime is 7776256097. The reversal of 7776256077 is 7706526777.

7776256077 is a `hidden beast` number, since 7 + 7 + 7 + 6 + 2 + 560 + 77 = 666.

7776256077 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5295618441 + 2480637636 = 72771^2 + 49806^2 .

It is not a de Polignac number, because 7776256077 - 2² = 7776256073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7776256073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432014218 + ... + 432014235.

Almost surely, 2^7776256077 is an apocalyptic number.

It is an amenable number.

7776256077 is a deficient number, since it is larger than the sum of its proper divisors (3456113825).

7776256077 is a wasteful number, since it uses less digits than its factorization.

7776256077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864028459 (or 864028456 counting only the distinct ones).

The product of its (nonzero) digits is 6050520, while the sum is 54.

The square root of 7776256077 is about 88183.0827143166. The cubic root of 7776256077 is about 1981.1780967221.

The spelling of 7776256077 in words is "seven billion, seven hundred seventy-six million, two hundred fifty-six thousand, seventy-seven".