5997856639 has 8 divisors (see below), whose sum is σ = 6072136560. Its totient is φ = 5923624896.

The previous prime is 5997856609. The next prime is 5997856643. The reversal of 5997856639 is 9366587995.

It is a happy number.

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 5997856639 - 2¹¹ = 5997854591 is a prime.

It is a super-3 number, since 3×5997856639³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5997856609) 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, 282669 + ... + 303145.

It is an arithmetic number, because the mean of its divisors is an integer number (759017070).

Almost surely, 2^5997856639 is an apocalyptic number.

5997856639 is a deficient number, since it is larger than the sum of its proper divisors (74279921).

5997856639 is a wasteful number, since it uses less digits than its factorization.

5997856639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24089.

The product of its digits is 110224800, while the sum is 67.

The square root of 5997856639 is about 77445.8303525761. The cubic root of 5997856639 is about 1816.9041923170.

The spelling of 5997856639 in words is "five billion, nine hundred ninety-seven million, eight hundred fifty-six thousand, six hundred thirty-nine".