5266540318313 has 2 divisors, whose sum is σ = 5266540318314. Its totient is φ = 5266540318312.

The previous prime is 5266540318307. The next prime is 5266540318331. The reversal of 5266540318313 is 3138130456625.

Together with next prime (5266540318331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3042973225744 + 2223567092569 = 1744412^2 + 1491163^2 .

It is a cyclic number.

It is not a de Polignac number, because 5266540318313 - 2⁸ = 5266540318057 is a prime.

It is not a weakly prime, because it can be changed into another prime (5266540518313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2633270159156 + 2633270159157.

It is an arithmetic number, because the mean of its divisors is an integer number (2633270159157).

Almost surely, 2^{5266540318313} is an apocalyptic number.

It is an amenable number.

5266540318313 is a deficient number, since it is larger than the sum of its proper divisors (1).

5266540318313 is an equidigital number, since it uses as much as digits as its factorization.

5266540318313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 5266540318313 in words is "five trillion, two hundred sixty-six billion, five hundred forty million, three hundred eighteen thousand, three hundred thirteen".