9158416649 has 2 divisors, whose sum is σ = 9158416650. Its totient is φ = 9158416648.

The previous prime is 9158416633. The next prime is 9158416679. The reversal of 9158416649 is 9466148519.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5169610000 + 3988806649 = 71900^2 + 63157^2 .

It is an emirp because it is prime and its reverse (9466148519) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9158416649 - 2⁴ = 9158416633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9158416649.

It is not a weakly prime, because it can be changed into another prime (9158416679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4579208324 + 4579208325.

It is an arithmetic number, because the mean of its divisors is an integer number (4579208325).

Almost surely, 2^9158416649 is an apocalyptic number.

It is an amenable number.

9158416649 is a deficient number, since it is larger than the sum of its proper divisors (1).

9158416649 is an equidigital number, since it uses as much as digits as its factorization.

9158416649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 9158416649 is about 95699.6167651679. The cubic root of 9158416649 is about 2092.2173493264.

The spelling of 9158416649 in words is "nine billion, one hundred fifty-eight million, four hundred sixteen thousand, six hundred forty-nine".