3881549533 has 2 divisors, whose sum is σ = 3881549534. Its totient is φ = 3881549532.

The previous prime is 3881549513. The next prime is 3881549537. The reversal of 3881549533 is 3359451883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3413130084 + 468419449 = 58422^2 + 21643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3881549533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3881549537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940774766 + 1940774767.

It is an arithmetic number, because the mean of its divisors is an integer number (1940774767).

Almost surely, 2^3881549533 is an apocalyptic number.

It is an amenable number.

3881549533 is a deficient number, since it is larger than the sum of its proper divisors (1).

3881549533 is an equidigital number, since it uses as much as digits as its factorization.

3881549533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 3881549533 is about 62302.0828945550. The cubic root of 3881549533 is about 1571.5747561050.

The spelling of 3881549533 in words is "three billion, eight hundred eighty-one million, five hundred forty-nine thousand, five hundred thirty-three".