10009838849 has 2 divisors, whose sum is σ = 10009838850. Its totient is φ = 10009838848.

The previous prime is 10009838827. The next prime is 10009838857. The reversal of 10009838849 is 94883890001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9973018225 + 36820624 = 99865^2 + 6068^2 .

It is a cyclic number.

It is not a de Polignac number, because 10009838849 - 2⁸ = 10009838593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10009838797 and 10009838806.

It is not a weakly prime, because it can be changed into another prime (10009838819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5004919424 + 5004919425.

It is an arithmetic number, because the mean of its divisors is an integer number (5004919425).

Almost surely, 2^10009838849 is an apocalyptic number.

It is an amenable number.

10009838849 is a deficient number, since it is larger than the sum of its proper divisors (1).

10009838849 is an equidigital number, since it uses as much as digits as its factorization.

10009838849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 10009838849 in words is "ten billion, nine million, eight hundred thirty-eight thousand, eight hundred forty-nine".