4971507491 has 8 divisors (see below), whose sum is σ = 5233813200. Its totient is φ = 4709266560.

The previous prime is 4971507481. The next prime is 4971507493. The reversal of 4971507491 is 1947051794.

It is a happy number.

4971507491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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-4971507491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4971507493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288815 + ... + 305543.

It is an arithmetic number, because the mean of its divisors is an integer number (654226650).

Almost surely, 2^4971507491 is an apocalyptic number.

4971507491 is a deficient number, since it is larger than the sum of its proper divisors (262305709).

4971507491 is a wasteful number, since it uses less digits than its factorization.

4971507491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32389.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 4971507491 is about 70508.9178118626. The cubic root of 4971507491 is about 1706.7216569645.

The spelling of 4971507491 in words is "four billion, nine hundred seventy-one million, five hundred seven thousand, four hundred ninety-one".