9112812649 has 2 divisors, whose sum is σ = 9112812650. Its totient is φ = 9112812648.

The previous prime is 9112812647. The next prime is 9112812671. The reversal of 9112812649 is 9462182119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9107266624 + 5546025 = 95432^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 9112812649 - 2¹ = 9112812647 is a prime.

Together with 9112812647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9112812641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4556406324 + 4556406325.

It is an arithmetic number, because the mean of its divisors is an integer number (4556406325).

Almost surely, 2^9112812649 is an apocalyptic number.

It is an amenable number.

9112812649 is a deficient number, since it is larger than the sum of its proper divisors (1).

9112812649 is an equidigital number, since it uses as much as digits as its factorization.

9112812649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 43.

The square root of 9112812649 is about 95461.0530478268. The cubic root of 9112812649 is about 2088.7388627226.

The spelling of 9112812649 in words is "nine billion, one hundred twelve million, eight hundred twelve thousand, six hundred forty-nine".