7183822981 has 2 divisors, whose sum is σ = 7183822982. Its totient is φ = 7183822980.

The previous prime is 7183822951. The next prime is 7183822999. The reversal of 7183822981 is 1892283817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3847720900 + 3336102081 = 62030^2 + 57759^2 .

It is an emirp because it is prime and its reverse (1892283817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7183822981 - 2⁷ = 7183822853 is a prime.

It is a super-2 number, since 2×7183822981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7183822901) 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, 3591911490 + 3591911491.

It is an arithmetic number, because the mean of its divisors is an integer number (3591911491).

Almost surely, 2^7183822981 is an apocalyptic number.

It is an amenable number.

7183822981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7183822981 is an equidigital number, since it uses as much as digits as its factorization.

7183822981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 49.

The square root of 7183822981 is about 84757.4361398456. The cubic root of 7183822981 is about 1929.5315051205.

The spelling of 7183822981 in words is "seven billion, one hundred eighty-three million, eight hundred twenty-two thousand, nine hundred eighty-one".