7045063981 has 2 divisors, whose sum is σ = 7045063982. Its totient is φ = 7045063980.

The previous prime is 7045063973. The next prime is 7045064011. The reversal of 7045063981 is 1893605407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6706135881 + 338928100 = 81891^2 + 18410^2 .

It is a cyclic number.

It is not a de Polignac number, because 7045063981 - 2³ = 7045063973 is a prime.

It is a super-2 number, since 2×7045063981² = 99265852992767136722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7045063901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3522531990 + 3522531991.

It is an arithmetic number, because the mean of its divisors is an integer number (3522531991).

Almost surely, 2^7045063981 is an apocalyptic number.

It is an amenable number.

7045063981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7045063981 is an equidigital number, since it uses as much as digits as its factorization.

7045063981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 7045063981 is about 83934.8794065971. The cubic root of 7045063981 is about 1917.0273716831.

It can be divided in two parts, 70450 and 63981, that added together give a palindrome (134431).

The spelling of 7045063981 in words is "seven billion, forty-five million, sixty-three thousand, nine hundred eighty-one".