5995309861 has 8 divisors (see below), whose sum is σ = 6016411800. Its totient is φ = 5974241280.

The previous prime is 5995309849. The next prime is 5995309907. The reversal of 5995309861 is 1689035995.

It can be written as a sum of positive squares in 4 ways, for example, as 1513676836 + 4481633025 = 38906^2 + 66945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5995309861 - 2¹⁷ = 5995178789 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 (5995309841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383445 + ... + 398773.

It is an arithmetic number, because the mean of its divisors is an integer number (752051475).

Almost surely, 2^5995309861 is an apocalyptic number.

It is an amenable number.

5995309861 is a deficient number, since it is larger than the sum of its proper divisors (21101939).

5995309861 is a wasteful number, since it uses less digits than its factorization.

5995309861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679.

The product of its (nonzero) digits is 2624400, while the sum is 55.

The square root of 5995309861 is about 77429.3862884112. The cubic root of 5995309861 is about 1816.6469945106.

The spelling of 5995309861 in words is "five billion, nine hundred ninety-five million, three hundred nine thousand, eight hundred sixty-one".