77676095009 has 2 divisors, whose sum is σ = 77676095010. Its totient is φ = 77676095008.

The previous prime is 77676094999. The next prime is 77676095033. The reversal of 77676095009 is 90059067677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40865835409 + 36810259600 = 202153^2 + 191860^2 .

It is a cyclic number.

It is not a de Polignac number, because 77676095009 - 2²⁴ = 77659317793 is a prime.

It is not a weakly prime, because it can be changed into another prime (77676095069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38838047504 + 38838047505.

It is an arithmetic number, because the mean of its divisors is an integer number (38838047505).

Almost surely, 2^77676095009 is an apocalyptic number.

It is an amenable number.

77676095009 is a deficient number, since it is larger than the sum of its proper divisors (1).

77676095009 is an equidigital number, since it uses as much as digits as its factorization.

77676095009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5000940, while the sum is 56.

The spelling of 77676095009 in words is "seventy-seven billion, six hundred seventy-six million, ninety-five thousand, nine".