5811220831577 has 4 divisors (see below), whose sum is σ = 6641395236096. Its totient is φ = 4981046427060.

The previous prime is 5811220831477. The next prime is 5811220831589. The reversal of 5811220831577 is 7751380221185.

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 5811220831577 - 2¹⁰ = 5811220830553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5811220831477) 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, 415087202249 + ... + 415087202262.

It is an arithmetic number, because the mean of its divisors is an integer number (1660348809024).

Almost surely, 2^{5811220831577} is an apocalyptic number.

It is an amenable number.

5811220831577 is a deficient number, since it is larger than the sum of its proper divisors (830174404519).

5811220831577 is an equidigital number, since it uses as much as digits as its factorization.

5811220831577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830174404518.

The product of its (nonzero) digits is 940800, while the sum is 50.

The spelling of 5811220831577 in words is "five trillion, eight hundred eleven billion, two hundred twenty million, eight hundred thirty-one thousand, five hundred seventy-seven".