4813971491 has 8 divisors (see below), whose sum is σ = 5507560800. Its totient is φ = 4121851968.

The previous prime is 4813971479. The next prime is 4813971497. The reversal of 4813971491 is 1941793184.

It is a happy number.

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-4813971491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4813971497) 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, 360416 + ... + 373533.

It is an arithmetic number, because the mean of its divisors is an integer number (688445100).

Almost surely, 2^4813971491 is an apocalyptic number.

4813971491 is a deficient number, since it is larger than the sum of its proper divisors (693589309).

4813971491 is an equidigital number, since it uses as much as digits as its factorization.

4813971491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734893.

The product of its digits is 217728, while the sum is 47.

The square root of 4813971491 is about 69382.7895879086. The cubic root of 4813971491 is about 1688.5004135197.

The spelling of 4813971491 in words is "four billion, eight hundred thirteen million, nine hundred seventy-one thousand, four hundred ninety-one".