2838527981 has 2 divisors, whose sum is σ = 2838527982. Its totient is φ = 2838527980.

The previous prime is 2838527977. The next prime is 2838528013. The reversal of 2838527981 is 1897258382.

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., 2736336100 + 102191881 = 52310^2 + 10109^2 .

It is a cyclic number.

It is not a de Polignac number, because 2838527981 - 2² = 2838527977 is a prime.

It is a super-2 number, since 2×2838527981² = 16114482197839872722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2838527921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1419263990 + 1419263991.

It is an arithmetic number, because the mean of its divisors is an integer number (1419263991).

Almost surely, 2^2838527981 is an apocalyptic number.

It is an amenable number.

2838527981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2838527981 is an equidigital number, since it uses as much as digits as its factorization.

2838527981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 53.

The square root of 2838527981 is about 53277.8376156540. The cubic root of 2838527981 is about 1415.8950383765.

The spelling of 2838527981 in words is "two billion, eight hundred thirty-eight million, five hundred twenty-seven thousand, nine hundred eighty-one".