76738165717 has 2 divisors, whose sum is σ = 76738165718. Its totient is φ = 76738165716.

The previous prime is 76738165627. The next prime is 76738165727. The reversal of 76738165717 is 71756183767.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39684225681 + 37053940036 = 199209^2 + 192494^2 .

It is a cyclic number.

It is not a de Polignac number, because 76738165717 - 2¹⁹ = 76737641429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76738165727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38369082858 + 38369082859.

It is an arithmetic number, because the mean of its divisors is an integer number (38369082859).

Almost surely, 2^76738165717 is an apocalyptic number.

It is an amenable number.

76738165717 is a deficient number, since it is larger than the sum of its proper divisors (1).

76738165717 is an equidigital number, since it uses as much as digits as its factorization.

76738165717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10372320, while the sum is 58.

The spelling of 76738165717 in words is "seventy-six billion, seven hundred thirty-eight million, one hundred sixty-five thousand, seven hundred seventeen".