916518769 has 2 divisors, whose sum is σ = 916518770. Its totient is φ = 916518768.

The previous prime is 916518709. The next prime is 916518787. The reversal of 916518769 is 967815619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661158369 + 255360400 = 25713^2 + 15980^2 .

It is a cyclic number.

It is not a de Polignac number, because 916518769 - 2¹⁵ = 916486001 is a prime.

It is a super-2 number, since 2×916518769² = 1680013307858550722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (916518709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458259384 + 458259385.

It is an arithmetic number, because the mean of its divisors is an integer number (458259385).

Almost surely, 2^916518769 is an apocalyptic number.

It is an amenable number.

916518769 is a deficient number, since it is larger than the sum of its proper divisors (1).

916518769 is an equidigital number, since it uses as much as digits as its factorization.

916518769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 52.

The square root of 916518769 is about 30274.0609928698. The cubic root of 916518769 is about 971.3605342106.

The spelling of 916518769 in words is "nine hundred sixteen million, five hundred eighteen thousand, seven hundred sixty-nine".