4371982981 has 2 divisors, whose sum is σ = 4371982982. Its totient is φ = 4371982980.

The previous prime is 4371982943. The next prime is 4371982987. The reversal of 4371982981 is 1892891734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3198920481 + 1173062500 = 56559^2 + 34250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4371982981 - 2⁹ = 4371982469 is a prime.

It is a super-2 number, since 2×4371982981² = 38228470372307292722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4371982987) 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, 2185991490 + 2185991491.

It is an arithmetic number, because the mean of its divisors is an integer number (2185991491).

Almost surely, 2^4371982981 is an apocalyptic number.

It is an amenable number.

4371982981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4371982981 is an equidigital number, since it uses as much as digits as its factorization.

4371982981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 4371982981 is about 66120.9723234618. The cubic root of 4371982981 is about 1635.1571117184.

The spelling of 4371982981 in words is "four billion, three hundred seventy-one million, nine hundred eighty-two thousand, nine hundred eighty-one".