78882036177317 has 2 divisors, whose sum is σ = 78882036177318. Its totient is φ = 78882036177316.

The previous prime is 78882036177313. The next prime is 78882036177391. The reversal of 78882036177317 is 71377163028887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48622366404676 + 30259669772641 = 6972974^2 + 5500879^2 .

It is a cyclic number.

It is not a de Polignac number, because 78882036177317 - 2² = 78882036177313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78882036177313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39441018088658 + 39441018088659.

It is an arithmetic number, because the mean of its divisors is an integer number (39441018088659).

Almost surely, 2^{78882036177317} is an apocalyptic number.

It is an amenable number.

78882036177317 is a deficient number, since it is larger than the sum of its proper divisors (1).

78882036177317 is an equidigital number, since it uses as much as digits as its factorization.

78882036177317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132765696, while the sum is 68.

The spelling of 78882036177317 in words is "seventy-eight trillion, eight hundred eighty-two billion, thirty-six million, one hundred seventy-seven thousand, three hundred seventeen".