2101086445709 has 2 divisors, whose sum is σ = 2101086445710. Its totient is φ = 2101086445708.

The previous prime is 2101086445691. The next prime is 2101086445739. The reversal of 2101086445709 is 9075446801012.

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., 1883473525609 + 217612920100 = 1372397^2 + 466490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101086445709 - 2²⁰ = 2101085397133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101086445739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050543222854 + 1050543222855.

It is an arithmetic number, because the mean of its divisors is an integer number (1050543222855).

Almost surely, 2^{2101086445709} is an apocalyptic number.

It is an amenable number.

2101086445709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101086445709 is an equidigital number, since it uses as much as digits as its factorization.

2101086445709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 2101086445709 in words is "two trillion, one hundred one billion, eighty-six million, four hundred forty-five thousand, seven hundred nine".