1833978841 has 2 divisors, whose sum is σ = 1833978842. Its totient is φ = 1833978840.

The previous prime is 1833978827. The next prime is 1833978863. The reversal of 1833978841 is 1488793381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1288522816 + 545456025 = 35896^2 + 23355^2 .

It is a cyclic number.

It is not a de Polignac number, because 1833978841 - 2⁹ = 1833978329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1833978871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916989420 + 916989421.

It is an arithmetic number, because the mean of its divisors is an integer number (916989421).

Almost surely, 2^1833978841 is an apocalyptic number.

It is an amenable number.

1833978841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1833978841 is an equidigital number, since it uses as much as digits as its factorization.

1833978841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 1833978841 is about 42824.9791710399. The cubic root of 1833978841 is about 1224.0470369471.

The spelling of 1833978841 in words is "one billion, eight hundred thirty-three million, nine hundred seventy-eight thousand, eight hundred forty-one".