12891283058942 has 4 divisors (see below), whose sum is σ = 19336924588416. Its totient is φ = 6445641529470.

The previous prime is 12891283058923. The next prime is 12891283058959. The reversal of 12891283058942 is 24985038219821.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222820764734 + ... + 3222820764737.

It is an arithmetic number, because the mean of its divisors is an integer number (4834231147104).

Almost surely, 2^{12891283058942} is an apocalyptic number.

12891283058942 is a deficient number, since it is larger than the sum of its proper divisors (6445641529474).

12891283058942 is an equidigital number, since it uses as much as digits as its factorization.

12891283058942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445641529473.

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 12891283058942 in words is "twelve trillion, eight hundred ninety-one billion, two hundred eighty-three million, fifty-eight thousand, nine hundred forty-two".