2001581093047 has 2 divisors, whose sum is σ = 2001581093048. Its totient is φ = 2001581093046.

The previous prime is 2001581092967. The next prime is 2001581093051. The reversal of 2001581093047 is 7403901851002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001581093047 - 2⁷ = 2001581092919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001581093077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000790546523 + 1000790546524.

It is an arithmetic number, because the mean of its divisors is an integer number (1000790546524).

Almost surely, 2^{2001581093047} is an apocalyptic number.

2001581093047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001581093047 is an equidigital number, since it uses as much as digits as its factorization.

2001581093047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 2001581093047 in words is "two trillion, one billion, five hundred eighty-one million, ninety-three thousand, forty-seven".