2005133441947 has 2 divisors, whose sum is σ = 2005133441948. Its totient is φ = 2005133441946.

The previous prime is 2005133441939. The next prime is 2005133441989. The reversal of 2005133441947 is 7491443315002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2005133441947 - 2³ = 2005133441939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2005133441447) 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, 1002566720973 + 1002566720974.

It is an arithmetic number, because the mean of its divisors is an integer number (1002566720974).

Almost surely, 2^{2005133441947} is an apocalyptic number.

2005133441947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005133441947 is an equidigital number, since it uses as much as digits as its factorization.

2005133441947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

Adding to 2005133441947 its reverse (7491443315002), we get a palindrome (9496576756949).

The spelling of 2005133441947 in words is "two trillion, five billion, one hundred thirty-three million, four hundred forty-one thousand, nine hundred forty-seven".