4845691321 has 9 divisors (see below), whose sum is σ = 4888598799. Its totient is φ = 4803159000.

The previous prime is 4845691307. The next prime is 4845691327. The reversal of 4845691321 is 1231965484.

The square root of 4845691321 is 69611.

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

It can be written as a sum of positive squares in only one way, i.e., 1553226921 + 3292464400 = 39411^2 + 57380^2 .

It is not a de Polignac number, because 4845691321 - 2⁹ = 4845690809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4845691327) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10511031 + ... + 10511491.

Almost surely, 2^4845691321 is an apocalyptic number.

4845691321 is the 69611-st square number.

4845691321 is the 34806-th centered octagonal number.

It is an amenable number.

4845691321 is a deficient number, since it is larger than the sum of its proper divisors (42907478).

4845691321 is an frugal number, since it uses more digits than its factorization.

4845691321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224 (or 612 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The cubic root of 4845691321 is about 1692.2008743893.

The spelling of 4845691321 in words is "four billion, eight hundred forty-five million, six hundred ninety-one thousand, three hundred twenty-one".