2005133441989 has 2 divisors, whose sum is σ = 2005133441990. Its totient is φ = 2005133441988.

The previous prime is 2005133441947. The next prime is 2005133442049. The reversal of 2005133441989 is 9891443315002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1875371391364 + 129762050625 = 1369442^2 + 360225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005133441989 - 2⁹ = 2005133441477 is a prime.

It is a super-2 number, since 2×2005133441989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005133441939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002566720994 + 1002566720995.

It is an arithmetic number, because the mean of its divisors is an integer number (1002566720995).

Almost surely, 2^{2005133441989} is an apocalyptic number.

It is an amenable number.

2005133441989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005133441989 is an equidigital number, since it uses as much as digits as its factorization.

2005133441989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 2005133441989 in words is "two trillion, five billion, one hundred thirty-three million, four hundred forty-one thousand, nine hundred eighty-nine".