2091441424979 has 2 divisors, whose sum is σ = 2091441424980. Its totient is φ = 2091441424978.

The previous prime is 2091441424973. The next prime is 2091441425053. The reversal of 2091441424979 is 9794241441902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2091441424979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2091441424973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045720712489 + 1045720712490.

It is an arithmetic number, because the mean of its divisors is an integer number (1045720712490).

Almost surely, 2^{2091441424979} is an apocalyptic number.

2091441424979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091441424979 is an equidigital number, since it uses as much as digits as its factorization.

2091441424979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 2091441424979 in words is "two trillion, ninety-one billion, four hundred forty-one million, four hundred twenty-four thousand, nine hundred seventy-nine".