5881636639081 has 4 divisors (see below), whose sum is σ = 6721870444672. Its totient is φ = 5041402833492.

The previous prime is 5881636639079. The next prime is 5881636639121. The reversal of 5881636639081 is 1809366361885.

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 5881636639081 - 2¹ = 5881636639079 is a prime.

It is a super-2 number, since 2×5881636639081² (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 (5881636639181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420116902785 + ... + 420116902798.

It is an arithmetic number, because the mean of its divisors is an integer number (1680467611168).

Almost surely, 2^{5881636639081} is an apocalyptic number.

It is an amenable number.

5881636639081 is a deficient number, since it is larger than the sum of its proper divisors (840233805591).

5881636639081 is an equidigital number, since it uses as much as digits as its factorization.

5881636639081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840233805590.

The product of its (nonzero) digits is 44789760, while the sum is 64.

The spelling of 5881636639081 in words is "five trillion, eight hundred eighty-one billion, six hundred thirty-six million, six hundred thirty-nine thousand, eighty-one".