5831211982891 has 4 divisors (see below), whose sum is σ = 5831301179232. Its totient is φ = 5831122786552.

The previous prime is 5831211982873. The next prime is 5831211982913. The reversal of 5831211982891 is 1982891121385.

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

It is a cyclic number.

It is not a de Polignac number, because 5831211982891 - 2⁷ = 5831211982763 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5831211982991) 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, 44500036 + ... + 44630881.

It is an arithmetic number, because the mean of its divisors is an integer number (1457825294808).

Almost surely, 2^{5831211982891} is an apocalyptic number.

5831211982891 is a deficient number, since it is larger than the sum of its proper divisors (89196341).

5831211982891 is an equidigital number, since it uses as much as digits as its factorization.

5831211982891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89196340.

The product of its digits is 2488320, while the sum is 58.

The spelling of 5831211982891 in words is "five trillion, eight hundred thirty-one billion, two hundred eleven million, nine hundred eighty-two thousand, eight hundred ninety-one".