2838838861 has 2 divisors, whose sum is σ = 2838838862. Its totient is φ = 2838838860.

The previous prime is 2838838859. The next prime is 2838838879. The reversal of 2838838861 is 1688388382.

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., 1675346761 + 1163492100 = 40931^2 + 34110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2838838861 - 2¹ = 2838838859 is a prime.

Together with 2838838859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2838838661) 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, 1419419430 + 1419419431.

It is an arithmetic number, because the mean of its divisors is an integer number (1419419431).

Almost surely, 2^2838838861 is an apocalyptic number.

It is an amenable number.

2838838861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2838838861 is an equidigital number, since it uses as much as digits as its factorization.

2838838861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3538944, while the sum is 55.

The square root of 2838838861 is about 53280.7550716016. The cubic root of 2838838861 is about 1415.9467268319.

The spelling of 2838838861 in words is "two billion, eight hundred thirty-eight million, eight hundred thirty-eight thousand, eight hundred sixty-one".