2144445091979 has 2 divisors, whose sum is σ = 2144445091980. Its totient is φ = 2144445091978.

The previous prime is 2144445091951. The next prime is 2144445091991. The reversal of 2144445091979 is 9791905444412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144445091979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2144445091939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072222545989 + 1072222545990.

It is an arithmetic number, because the mean of its divisors is an integer number (1072222545990).

Almost surely, 2^{2144445091979} is an apocalyptic number.

2144445091979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144445091979 is an equidigital number, since it uses as much as digits as its factorization.

2144445091979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 2144445091979 in words is "two trillion, one hundred forty-four billion, four hundred forty-five million, ninety-one thousand, nine hundred seventy-nine".