6331118977 has 4 divisors (see below), whose sum is σ = 6331301460. Its totient is φ = 6330936496.

The previous prime is 6331118929. The next prime is 6331118987. The reversal of 6331118977 is 7798111336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 475196401 + 5855922576 = 21799^2 + 76524^2 .

It is a cyclic number.

It is not a de Polignac number, because 6331118977 - 2¹¹ = 6331116929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6331118987) 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, 21358 + ... + 114535.

It is an arithmetic number, because the mean of its divisors is an integer number (1582825365).

Almost surely, 2^6331118977 is an apocalyptic number.

It is an amenable number.

6331118977 is a deficient number, since it is larger than the sum of its proper divisors (182483).

6331118977 is a wasteful number, since it uses less digits than its factorization.

6331118977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182482.

The product of its digits is 190512, while the sum is 46.

The square root of 6331118977 is about 79568.3289820768. The cubic root of 6331118977 is about 1849.9507147328.

The spelling of 6331118977 in words is "six billion, three hundred thirty-one million, one hundred eighteen thousand, nine hundred seventy-seven".