2631329317 has 2 divisors, whose sum is σ = 2631329318. Its totient is φ = 2631329316.

The previous prime is 2631329303. The next prime is 2631329359. The reversal of 2631329317 is 7139231362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2094526756 + 536802561 = 45766^2 + 23169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631329317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631329387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315664658 + 1315664659.

It is an arithmetic number, because the mean of its divisors is an integer number (1315664659).

Almost surely, 2^2631329317 is an apocalyptic number.

It is an amenable number.

2631329317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631329317 is an equidigital number, since it uses as much as digits as its factorization.

2631329317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 37.

The square root of 2631329317 is about 51296.4844506912. The cubic root of 2631329317 is about 1380.5699034140.

The spelling of 2631329317 in words is "two billion, six hundred thirty-one million, three hundred twenty-nine thousand, three hundred seventeen".