76777766701 has 2 divisors, whose sum is σ = 76777766702. Its totient is φ = 76777766700.

The previous prime is 76777766633. The next prime is 76777766731. The reversal of 76777766701 is 10766777767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58551416676 + 18226350025 = 241974^2 + 135005^2 .

It is a cyclic number.

It is not a de Polignac number, because 76777766701 - 2²⁵ = 76744212269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76777766701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76777766731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38388883350 + 38388883351.

It is an arithmetic number, because the mean of its divisors is an integer number (38388883351).

Almost surely, 2^76777766701 is an apocalyptic number.

It is an amenable number.

76777766701 is a deficient number, since it is larger than the sum of its proper divisors (1).

76777766701 is an equidigital number, since it uses as much as digits as its factorization.

76777766701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25412184, while the sum is 61.

The spelling of 76777766701 in words is "seventy-six billion, seven hundred seventy-seven million, seven hundred sixty-six thousand, seven hundred one".