6417772321 has 3 divisors (see below), whose sum is σ = 6417852433. Its totient is φ = 6417692210.

The previous prime is 6417772267. The next prime is 6417772337. The reversal of 6417772321 is 1232777146.

The square root of 6417772321 is 80111.

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 a de Polignac number, because none of the positive numbers 2^k-6417772321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6417772721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40056 + ... + 120166.

Almost surely, 2^6417772321 is an apocalyptic number.

6417772321 is the 80111-st square number.

6417772321 is the 40056-th centered octagonal number.

It is an amenable number.

6417772321 is a deficient number, since it is larger than the sum of its proper divisors (80112).

6417772321 is an frugal number, since it uses more digits than its factorization.

6417772321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160222 (or 80111 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The cubic root of 6417772321 is about 1858.3525244123.

The spelling of 6417772321 in words is "six billion, four hundred seventeen million, seven hundred seventy-two thousand, three hundred twenty-one".