2001446032009 has 2 divisors, whose sum is σ = 2001446032010. Its totient is φ = 2001446032008.

The previous prime is 2001446031997. The next prime is 2001446032133. The reversal of 2001446032009 is 9002306441002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1616305395600 + 385140636409 = 1271340^2 + 620597^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001446032009 - 2²¹ = 2001443934857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001446033009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000723016004 + 1000723016005.

It is an arithmetic number, because the mean of its divisors is an integer number (1000723016005).

Almost surely, 2^{2001446032009} is an apocalyptic number.

It is an amenable number.

2001446032009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001446032009 is an equidigital number, since it uses as much as digits as its factorization.

2001446032009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 2001446032009 in words is "two trillion, one billion, four hundred forty-six million, thirty-two thousand, nine".