2105783408291 has 2 divisors, whose sum is σ = 2105783408292. Its totient is φ = 2105783408290.

The previous prime is 2105783408279. The next prime is 2105783408347. The reversal of 2105783408291 is 1928043875012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105783408291 - 2³⁴ = 2088603539107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105783408251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052891704145 + 1052891704146.

It is an arithmetic number, because the mean of its divisors is an integer number (1052891704146).

Almost surely, 2^{2105783408291} is an apocalyptic number.

2105783408291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105783408291 is an equidigital number, since it uses as much as digits as its factorization.

2105783408291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 2105783408291 in words is "two trillion, one hundred five billion, seven hundred eighty-three million, four hundred eight thousand, two hundred ninety-one".