2149050449291 has 2 divisors, whose sum is σ = 2149050449292. Its totient is φ = 2149050449290.

The previous prime is 2149050449281. The next prime is 2149050449317. The reversal of 2149050449291 is 1929440509412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149050449291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149050449251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074525224645 + 1074525224646.

It is an arithmetic number, because the mean of its divisors is an integer number (1074525224646).

Almost surely, 2^{2149050449291} is an apocalyptic number.

2149050449291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149050449291 is an equidigital number, since it uses as much as digits as its factorization.

2149050449291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 2149050449291 in words is "two trillion, one hundred forty-nine billion, fifty million, four hundred forty-nine thousand, two hundred ninety-one".