4818331991 has 8 divisors (see below), whose sum is σ = 5437616400. Its totient is φ = 4229256640.

The previous prime is 4818331963. The next prime is 4818332003. The reversal of 4818331991 is 1991338184.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4818331991 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 (4818331901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7551926 + ... + 7552563.

It is an arithmetic number, because the mean of its divisors is an integer number (679702050).

Almost surely, 2^4818331991 is an apocalyptic number.

4818331991 is a deficient number, since it is larger than the sum of its proper divisors (619284409).

4818331991 is a wasteful number, since it uses less digits than its factorization.

4818331991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15104529.

The product of its digits is 186624, while the sum is 47.

The square root of 4818331991 is about 69414.2059739935. The cubic root of 4818331991 is about 1689.0100747655.

It can be divided in two parts, 481833 and 1991, that multiplied together give a triangular number (959329503 = T₄₃₈₀₂).

The spelling of 4818331991 in words is "four billion, eight hundred eighteen million, three hundred thirty-one thousand, nine hundred ninety-one".