838843749043 has 2 divisors, whose sum is σ = 838843749044. Its totient is φ = 838843749042.

The previous prime is 838843749041. The next prime is 838843749077. The reversal of 838843749043 is 340947348838.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838843749043 - 2¹ = 838843749041 is a prime.

Together with 838843749041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (838843749041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419421874521 + 419421874522.

It is an arithmetic number, because the mean of its divisors is an integer number (419421874522).

Almost surely, 2^838843749043 is an apocalyptic number.

838843749043 is a deficient number, since it is larger than the sum of its proper divisors (1).

838843749043 is an equidigital number, since it uses as much as digits as its factorization.

838843749043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 61.

The spelling of 838843749043 in words is "eight hundred thirty-eight billion, eight hundred forty-three million, seven hundred forty-nine thousand, forty-three".