5991975399 has 8 divisors (see below), whose sum is σ = 8247020032. Its totient is φ = 3865790520.

The previous prime is 5991975377. The next prime is 5991975421. The reversal of 5991975399 is 9935791995.

It is an interprime number because it is at equal distance from previous prime (5991975377) and next prime (5991975421).

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

It is not a de Polignac number, because 5991975399 - 2⁷ = 5991975271 is a prime.

It is a super-3 number, since 3×5991975399³ (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 (5991985399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32214829 + ... + 32215014.

It is an arithmetic number, because the mean of its divisors is an integer number (1030877504).

Almost surely, 2^5991975399 is an apocalyptic number.

5991975399 is a deficient number, since it is larger than the sum of its proper divisors (2255044633).

5991975399 is a wasteful number, since it uses less digits than its factorization.

5991975399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64429877.

The product of its digits is 31000725, while the sum is 66.

The square root of 5991975399 is about 77407.8510165474. The cubic root of 5991975399 is about 1816.3101387637.

The spelling of 5991975399 in words is "five billion, nine hundred ninety-one million, nine hundred seventy-five thousand, three hundred ninety-nine".