838843749113 has 2 divisors, whose sum is σ = 838843749114. Its totient is φ = 838843749112.

The previous prime is 838843749077. The next prime is 838843749173. The reversal of 838843749113 is 311947348838.

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., 562264524649 + 276579224464 = 749843^2 + 525908^2 .

It is a cyclic number.

It is not a de Polignac number, because 838843749113 - 2⁸ = 838843748857 is a prime.

It is not a weakly prime, because it can be changed into another prime (838843749173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419421874556 + 419421874557.

It is an arithmetic number, because the mean of its divisors is an integer number (419421874557).

Almost surely, 2^838843749113 is an apocalyptic number.

It is an amenable number.

838843749113 is a deficient number, since it is larger than the sum of its proper divisors (1).

838843749113 is an equidigital number, since it uses as much as digits as its factorization.

838843749113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13934592, while the sum is 59.

The spelling of 838843749113 in words is "eight hundred thirty-eight billion, eight hundred forty-three million, seven hundred forty-nine thousand, one hundred thirteen".