77136677767 has 2 divisors, whose sum is σ = 77136677768. Its totient is φ = 77136677766.

The previous prime is 77136677753. The next prime is 77136677773. The reversal of 77136677767 is 76777663177.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77136677767 - 2²³ = 77128289159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77136677699 and 77136677708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77136677707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38568338883 + 38568338884.

It is an arithmetic number, because the mean of its divisors is an integer number (38568338884).

Almost surely, 2^77136677767 is an apocalyptic number.

77136677767 is a deficient number, since it is larger than the sum of its proper divisors (1).

77136677767 is an equidigital number, since it uses as much as digits as its factorization.

77136677767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76236552, while the sum is 64.

The spelling of 77136677767 in words is "seventy-seven billion, one hundred thirty-six million, six hundred seventy-seven thousand, seven hundred sixty-seven".