8457736009 has 2 divisors, whose sum is σ = 8457736010. Its totient is φ = 8457736008.

The previous prime is 8457735997. The next prime is 8457736033. The reversal of 8457736009 is 9006377548.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6177960000 + 2279776009 = 78600^2 + 47747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8457736009 is a prime.

It is not a weakly prime, because it can be changed into another prime (8457736409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4228868004 + 4228868005.

It is an arithmetic number, because the mean of its divisors is an integer number (4228868005).

Almost surely, 2^8457736009 is an apocalyptic number.

It is an amenable number.

8457736009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8457736009 is an equidigital number, since it uses as much as digits as its factorization.

8457736009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 8457736009 is about 91965.9502696514. The cubic root of 8457736009 is about 2037.4394383695.

The spelling of 8457736009 in words is "eight billion, four hundred fifty-seven million, seven hundred thirty-six thousand, nine".