5861533861 has 4 divisors (see below), whose sum is σ = 5867844300. Its totient is φ = 5855223424.

The previous prime is 5861533817. The next prime is 5861533891. The reversal of 5861533861 is 1683351685.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1683351685 = 5 ⋅336670337.

It can be written as a sum of positive squares in 2 ways, for example, as 3112524100 + 2749009761 = 55790^2 + 52431^2 .

It is a cyclic number.

It is not a de Polignac number, because 5861533861 - 2²⁵ = 5827979429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5861533891) 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, 3153826 + ... + 3155683.

It is an arithmetic number, because the mean of its divisors is an integer number (1466961075).

Almost surely, 2^5861533861 is an apocalyptic number.

It is an amenable number.

5861533861 is a deficient number, since it is larger than the sum of its proper divisors (6310439).

5861533861 is an equidigital number, since it uses as much as digits as its factorization.

5861533861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6310438.

The product of its digits is 518400, while the sum is 46.

The square root of 5861533861 is about 76560.6547842950. The cubic root of 5861533861 is about 1803.0333484152.

The spelling of 5861533861 in words is "five billion, eight hundred sixty-one million, five hundred thirty-three thousand, eight hundred sixty-one".