205387848713 has 2 divisors, whose sum is σ = 205387848714. Its totient is φ = 205387848712.

The previous prime is 205387848709. The next prime is 205387848727. The reversal of 205387848713 is 317848783502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150262443769 + 55125404944 = 387637^2 + 234788^2 .

It is a cyclic number.

It is not a de Polignac number, because 205387848713 - 2² = 205387848709 is a prime.

It is not a weakly prime, because it can be changed into another prime (205387848733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102693924356 + 102693924357.

It is an arithmetic number, because the mean of its divisors is an integer number (102693924357).

Almost surely, 2^205387848713 is an apocalyptic number.

It is an amenable number.

205387848713 is a deficient number, since it is larger than the sum of its proper divisors (1).

205387848713 is an equidigital number, since it uses as much as digits as its factorization.

205387848713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 205387848713 in words is "two hundred five billion, three hundred eighty-seven million, eight hundred forty-eight thousand, seven hundred thirteen".