8516392789 has 2 divisors, whose sum is σ = 8516392790. Its totient is φ = 8516392788.

The previous prime is 8516392741. The next prime is 8516392921. The reversal of 8516392789 is 9872936158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7532504100 + 983888689 = 86790^2 + 31367^2 .

It is a cyclic number.

It is not a de Polignac number, because 8516392789 - 2²⁹ = 7979521877 is a prime.

It is a super-2 number, since 2×8516392789² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8516392189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258196394 + 4258196395.

It is an arithmetic number, because the mean of its divisors is an integer number (4258196395).

Almost surely, 2^8516392789 is an apocalyptic number.

It is an amenable number.

8516392789 is a deficient number, since it is larger than the sum of its proper divisors (1).

8516392789 is an equidigital number, since it uses as much as digits as its factorization.

8516392789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 58.

The square root of 8516392789 is about 92284.3041313094. The cubic root of 8516392789 is about 2042.1386635798.

The spelling of 8516392789 in words is "eight billion, five hundred sixteen million, three hundred ninety-two thousand, seven hundred eighty-nine".