4997649271 has 4 divisors (see below), whose sum is σ = 4999084344. Its totient is φ = 4996214200.

The previous prime is 4997649269. The next prime is 4997649289. The reversal of 4997649271 is 1729467994.

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

It is a cyclic number.

It is not a de Polignac number, because 4997649271 - 2¹ = 4997649269 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 (4997649571) 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, 712300 + ... + 719281.

It is an arithmetic number, because the mean of its divisors is an integer number (1249771086).

Almost surely, 2^4997649271 is an apocalyptic number.

4997649271 is a deficient number, since it is larger than the sum of its proper divisors (1435073).

4997649271 is a wasteful number, since it uses less digits than its factorization.

4997649271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435072.

The product of its digits is 6858432, while the sum is 58.

The square root of 4997649271 is about 70694.0540003189. The cubic root of 4997649271 is about 1709.7079253328.

The spelling of 4997649271 in words is "four billion, nine hundred ninety-seven million, six hundred forty-nine thousand, two hundred seventy-one".