12833871491 has 4 divisors (see below), whose sum is σ = 14667281712. Its totient is φ = 11000461272.

The previous prime is 12833871487. The next prime is 12833871509. The reversal of 12833871491 is 19417833821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19417833821 = 39541 ⋅491081.

It is a cyclic number.

It is not a de Polignac number, because 12833871491 - 2² = 12833871487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12833871991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916705100 + ... + 916705113.

It is an arithmetic number, because the mean of its divisors is an integer number (3666820428).

Almost surely, 2^12833871491 is an apocalyptic number.

12833871491 is a deficient number, since it is larger than the sum of its proper divisors (1833410221).

12833871491 is an equidigital number, since it uses as much as digits as its factorization.

12833871491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833410220.

The product of its digits is 290304, while the sum is 47.

The spelling of 12833871491 in words is "twelve billion, eight hundred thirty-three million, eight hundred seventy-one thousand, four hundred ninety-one".