5821158844681 has 4 divisors (see below), whose sum is σ = 6127535626000. Its totient is φ = 5514782063364.

The previous prime is 5821158844679. The next prime is 5821158844691. The reversal of 5821158844681 is 1864488511285.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5821158844681 - 2¹ = 5821158844679 is a prime.

It is a super-2 number, since 2×5821158844681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5821158844601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153188390631 + ... + 153188390668.

It is an arithmetic number, because the mean of its divisors is an integer number (1531883906500).

Almost surely, 2^{5821158844681} is an apocalyptic number.

It is an amenable number.

5821158844681 is a deficient number, since it is larger than the sum of its proper divisors (306376781319).

5821158844681 is a wasteful number, since it uses less digits than its factorization.

5821158844681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306376781318.

The product of its digits is 19660800, while the sum is 61.

The spelling of 5821158844681 in words is "five trillion, eight hundred twenty-one billion, one hundred fifty-eight million, eight hundred forty-four thousand, six hundred eighty-one".