2001888325609 has 2 divisors, whose sum is σ = 2001888325610. Its totient is φ = 2001888325608.

The previous prime is 2001888325601. The next prime is 2001888325639. The reversal of 2001888325609 is 9065238881002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1703038050025 + 298850275584 = 1305005^2 + 546672^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001888325609 - 2³ = 2001888325601 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001888325601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000944162804 + 1000944162805.

It is an arithmetic number, because the mean of its divisors is an integer number (1000944162805).

Almost surely, 2^{2001888325609} is an apocalyptic number.

It is an amenable number.

2001888325609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001888325609 is an equidigital number, since it uses as much as digits as its factorization.

2001888325609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 2001888325609 in words is "two trillion, one billion, eight hundred eighty-eight million, three hundred twenty-five thousand, six hundred nine".