2146445405771 has 2 divisors, whose sum is σ = 2146445405772. Its totient is φ = 2146445405770.

The previous prime is 2146445405761. The next prime is 2146445405773. The reversal of 2146445405771 is 1775045446412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146445405771 is a prime.

Together with 2146445405773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2146445405773) 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, 1073222702885 + 1073222702886.

It is an arithmetic number, because the mean of its divisors is an integer number (1073222702886).

Almost surely, 2^{2146445405771} is an apocalyptic number.

2146445405771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146445405771 is an equidigital number, since it uses as much as digits as its factorization.

2146445405771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3763200, while the sum is 50.

The spelling of 2146445405771 in words is "two trillion, one hundred forty-six billion, four hundred forty-five million, four hundred five thousand, seven hundred seventy-one".