8313937566281 has 2 divisors, whose sum is σ = 8313937566282. Its totient is φ = 8313937566280.

The previous prime is 8313937566199. The next prime is 8313937566287. The reversal of 8313937566281 is 1826657393138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5292111610681 + 3021825955600 = 2300459^2 + 1738340^2 .

It is a cyclic number.

It is not a de Polignac number, because 8313937566281 - 2¹⁸ = 8313937304137 is a prime.

It is a super-2 number, since 2×8313937566281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8313937566287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4156968783140 + 4156968783141.

It is an arithmetic number, because the mean of its divisors is an integer number (4156968783141).

Almost surely, 2^{8313937566281} is an apocalyptic number.

It is an amenable number.

8313937566281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8313937566281 is an equidigital number, since it uses as much as digits as its factorization.

8313937566281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 62.

The spelling of 8313937566281 in words is "eight trillion, three hundred thirteen billion, nine hundred thirty-seven million, five hundred sixty-six thousand, two hundred eighty-one".