2600189990309 has 2 divisors, whose sum is σ = 2600189990310. Its totient is φ = 2600189990308.

The previous prime is 2600189990267. The next prime is 2600189990347. The reversal of 2600189990309 is 9030999810062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2238249382084 + 361940608225 = 1496078^2 + 601615^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600189990309 - 2⁸ = 2600189990053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2600189995309) 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, 1300094995154 + 1300094995155.

It is an arithmetic number, because the mean of its divisors is an integer number (1300094995155).

Almost surely, 2^{2600189990309} is an apocalyptic number.

It is an amenable number.

2600189990309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2600189990309 is an equidigital number, since it uses as much as digits as its factorization.

2600189990309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 56.

The spelling of 2600189990309 in words is "two trillion, six hundred billion, one hundred eighty-nine million, nine hundred ninety thousand, three hundred nine".