2196983881 has 2 divisors, whose sum is σ = 2196983882. Its totient is φ = 2196983880.

The previous prime is 2196983849. The next prime is 2196983903. The reversal of 2196983881 is 1883896912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2149249600 + 47734281 = 46360^2 + 6909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196983881 - 2⁵ = 2196983849 is a prime.

It is a super-2 number, since 2×2196983881² = 9653476346747644322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2196983081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098491940 + 1098491941.

It is an arithmetic number, because the mean of its divisors is an integer number (1098491941).

Almost surely, 2^2196983881 is an apocalyptic number.

It is an amenable number.

2196983881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196983881 is an equidigital number, since it uses as much as digits as its factorization.

2196983881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 55.

The square root of 2196983881 is about 46871.9946343230. The cubic root of 2196983881 is about 1299.9968207023.

The spelling of 2196983881 in words is "two billion, one hundred ninety-six million, nine hundred eighty-three thousand, eight hundred eighty-one".