8516534413 has 2 divisors, whose sum is σ = 8516534414. Its totient is φ = 8516534412.

The previous prime is 8516534399. The next prime is 8516534417. The reversal of 8516534413 is 3144356158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6109454569 + 2407079844 = 78163^2 + 49062^2 .

It is a cyclic number.

It is not a de Polignac number, because 8516534413 - 2⁵ = 8516534381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8516534417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258267206 + 4258267207.

It is an arithmetic number, because the mean of its divisors is an integer number (4258267207).

Almost surely, 2^8516534413 is an apocalyptic number.

It is an amenable number.

8516534413 is a deficient number, since it is larger than the sum of its proper divisors (1).

8516534413 is an equidigital number, since it uses as much as digits as its factorization.

8516534413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 8516534413 is about 92285.0714525378. The cubic root of 8516534413 is about 2042.1499834836.

The spelling of 8516534413 in words is "eight billion, five hundred sixteen million, five hundred thirty-four thousand, four hundred thirteen".