12891283058943 has 80 divisors (see below), whose sum is σ = 20056044372672. Its totient is φ = 8244815040000.

The previous prime is 12891283058923. The next prime is 12891283058959. The reversal of 12891283058943 is 34985038219821.

12891283058943 is a `hidden beast` number, since 1 + 2 + 8 + 9 + 1 + 2 + 8 + 3 + 0 + 589 + 43 = 666.

It is not a de Polignac number, because 12891283058943 - 2¹² = 12891283054847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12891283058923) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1002972105 + ... + 1002984957.

Almost surely, 2^{12891283058943} is an apocalyptic number.

12891283058943 is a deficient number, since it is larger than the sum of its proper divisors (7164761313729).

12891283058943 is a wasteful number, since it uses less digits than its factorization.

12891283058943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17918 (or 17909 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 12891283058943 in words is "twelve trillion, eight hundred ninety-one billion, two hundred eighty-three million, fifty-eight thousand, nine hundred forty-three".