3117788970497 has 2 divisors, whose sum is σ = 3117788970498. Its totient is φ = 3117788970496.

The previous prime is 3117788970419. The next prime is 3117788970557. The reversal of 3117788970497 is 7940798877113.

3117788970497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2547267072256 + 570521898241 = 1596016^2 + 755329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3117788970497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3117788970497.

It is not a weakly prime, because it can be changed into another prime (3117788972497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558894485248 + 1558894485249.

It is an arithmetic number, because the mean of its divisors is an integer number (1558894485249).

Almost surely, 2^{3117788970497} is an apocalyptic number.

It is an amenable number.

3117788970497 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117788970497 is an equidigital number, since it uses as much as digits as its factorization.

3117788970497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 149361408, while the sum is 71.

The spelling of 3117788970497 in words is "three trillion, one hundred seventeen billion, seven hundred eighty-eight million, nine hundred seventy thousand, four hundred ninety-seven".