5991143773 has 4 divisors (see below), whose sum is σ = 5991379200. Its totient is φ = 5990908348.

The previous prime is 5991143761. The next prime is 5991143789. The reversal of 5991143773 is 3773411995.

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 5991143773 - 2⁹ = 5991143261 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5991143273) 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 3 ways as a sum of consecutive naturals, for example, 74173 + ... + 132226.

It is an arithmetic number, because the mean of its divisors is an integer number (1497844800).

Almost surely, 2^5991143773 is an apocalyptic number.

It is an amenable number.

5991143773 is a deficient number, since it is larger than the sum of its proper divisors (235427).

5991143773 is a wasteful number, since it uses less digits than its factorization.

5991143773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235426.

The product of its digits is 714420, while the sum is 49.

The square root of 5991143773 is about 77402.4791140439. The cubic root of 5991143773 is about 1816.2261063415.

It can be divided in two parts, 59911 and 43773, that added together give a square (103684 = 322²).

The spelling of 5991143773 in words is "five billion, nine hundred ninety-one million, one hundred forty-three thousand, seven hundred seventy-three".