79011110077 has 2 divisors, whose sum is σ = 79011110078. Its totient is φ = 79011110076.

The previous prime is 79011110041. The next prime is 79011110083. The reversal of 79011110077 is 77001111097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69100111161 + 9910998916 = 262869^2 + 99554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79011110077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79011110027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39505555038 + 39505555039.

It is an arithmetic number, because the mean of its divisors is an integer number (39505555039).

Almost surely, 2^79011110077 is an apocalyptic number.

It is an amenable number.

79011110077 is a deficient number, since it is larger than the sum of its proper divisors (1).

79011110077 is an equidigital number, since it uses as much as digits as its factorization.

79011110077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087, while the sum is 34.

The spelling of 79011110077 in words is "seventy-nine billion, eleven million, one hundred ten thousand, seventy-seven".