3563207981 has 2 divisors, whose sum is σ = 3563207982. Its totient is φ = 3563207980.

The previous prime is 3563207971. The next prime is 3563208031. The reversal of 3563207981 is 1897023653.

3563207981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2126039881 + 1437168100 = 46109^2 + 37910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3563207981 - 2¹⁰ = 3563206957 is a prime.

It is a super-2 number, since 2×3563207981² = 25392902231724192722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3563207911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1781603990 + 1781603991.

It is an arithmetic number, because the mean of its divisors is an integer number (1781603991).

Almost surely, 2^3563207981 is an apocalyptic number.

It is an amenable number.

3563207981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3563207981 is an equidigital number, since it uses as much as digits as its factorization.

3563207981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 3563207981 is about 59692.6124491130. The cubic root of 3563207981 is about 1527.3798521703.

The spelling of 3563207981 in words is "three billion, five hundred sixty-three million, two hundred seven thousand, nine hundred eighty-one".