8013838849 has 2 divisors, whose sum is σ = 8013838850. Its totient is φ = 8013838848.

The previous prime is 8013838841. The next prime is 8013838873. The reversal of 8013838849 is 9488383108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7933108624 + 80730225 = 89068^2 + 8985^2 .

It is a cyclic number.

It is not a de Polignac number, because 8013838849 - 2³ = 8013838841 is a prime.

It is a super-2 number, since 2×8013838849² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8013838796 and 8013838805.

It is not a weakly prime, because it can be changed into another prime (8013838841) 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, 4006919424 + 4006919425.

It is an arithmetic number, because the mean of its divisors is an integer number (4006919425).

Almost surely, 2^8013838849 is an apocalyptic number.

It is an amenable number.

8013838849 is a deficient number, since it is larger than the sum of its proper divisors (1).

8013838849 is an equidigital number, since it uses as much as digits as its factorization.

8013838849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 52.

The square root of 8013838849 is about 89520.0471905595. The cubic root of 8013838849 is about 2001.1525730767.

The spelling of 8013838849 in words is "eight billion, thirteen million, eight hundred thirty-eight thousand, eight hundred forty-nine".