4686809321 has 2 divisors, whose sum is σ = 4686809322. Its totient is φ = 4686809320.

The previous prime is 4686809311. The next prime is 4686809333. The reversal of 4686809321 is 1239086864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4294967296 + 391842025 = 65536^2 + 19795^2 .

It is a cyclic number.

It is not a de Polignac number, because 4686809321 - 2¹⁰ = 4686808297 is a prime.

It is a super-2 number, since 2×4686809321² = 43932363222824962082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4686809311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343404660 + 2343404661.

It is an arithmetic number, because the mean of its divisors is an integer number (2343404661).

Almost surely, 2^4686809321 is an apocalyptic number.

It is an amenable number.

4686809321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4686809321 is an equidigital number, since it uses as much as digits as its factorization.

4686809321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 4686809321 is about 68460.2754960860. The cubic root of 4686809321 is about 1673.5001732514.

The spelling of 4686809321 in words is "four billion, six hundred eighty-six million, eight hundred nine thousand, three hundred twenty-one".