8513374817 has 2 divisors, whose sum is σ = 8513374818. Its totient is φ = 8513374816.

The previous prime is 8513374811. The next prime is 8513374841. The reversal of 8513374817 is 7184733158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6418573456 + 2094801361 = 80116^2 + 45769^2 .

It is a cyclic number.

It is not a de Polignac number, because 8513374817 - 2²² = 8509180513 is a prime.

It is not a weakly prime, because it can be changed into another prime (8513374811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4256687408 + 4256687409.

It is an arithmetic number, because the mean of its divisors is an integer number (4256687409).

Almost surely, 2^8513374817 is an apocalyptic number.

It is an amenable number.

8513374817 is a deficient number, since it is larger than the sum of its proper divisors (1).

8513374817 is an equidigital number, since it uses as much as digits as its factorization.

8513374817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The square root of 8513374817 is about 92267.9511910826. The cubic root of 8513374817 is about 2041.8974094238.

The spelling of 8513374817 in words is "eight billion, five hundred thirteen million, three hundred seventy-four thousand, eight hundred seventeen".