4881518791 has 4 divisors (see below), whose sum is σ = 4881662512. Its totient is φ = 4881375072.

The previous prime is 4881518773. The next prime is 4881518849. The reversal of 4881518791 is 1978151884.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4881518791 is a prime.

It is a super-2 number, since 2×4881518791² = 47658451413772203362, which contains 22 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 (4881518701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10726 + ... + 99388.

It is an arithmetic number, because the mean of its divisors is an integer number (1220415628).

Almost surely, 2^4881518791 is an apocalyptic number.

4881518791 is a deficient number, since it is larger than the sum of its proper divisors (143721).

4881518791 is an equidigital number, since it uses as much as digits as its factorization.

4881518791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143720.

The product of its digits is 645120, while the sum is 52.

The square root of 4881518791 is about 69867.8666555663. The cubic root of 4881518791 is about 1696.3611660332.

The spelling of 4881518791 in words is "four billion, eight hundred eighty-one million, five hundred eighteen thousand, seven hundred ninety-one".