4972645783249 has 3 divisors (see below), whose sum is σ = 4972648013193. Its totient is φ = 4972643553306.

The previous prime is 4972645783219. The next prime is 4972645783253. The reversal of 4972645783249 is 9423875462794.

The square root of 4972645783249 is 2229943.

It is a perfect power (a square), and thus also a powerful number.

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 not a de Polignac number, because 4972645783249 - 2⁹ = 4972645782737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4972645783219) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1114972 + ... + 3344914.

It is an arithmetic number, because the mean of its divisors is an integer number (1657549337731).

Almost surely, 2^{4972645783249} is an apocalyptic number.

4972645783249 is the 2229943-rd square number.

4972645783249 is the 1114972-nd centered octagonal number.

It is an amenable number.

4972645783249 is a deficient number, since it is larger than the sum of its proper divisors (2229944).

4972645783249 is an frugal number, since it uses more digits than its factorization.

4972645783249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459886 (or 2229943 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 70.

The spelling of 4972645783249 in words is "four trillion, nine hundred seventy-two billion, six hundred forty-five million, seven hundred eighty-three thousand, two hundred forty-nine".