4645385249 has 2 divisors, whose sum is σ = 4645385250. Its totient is φ = 4645385248.

The previous prime is 4645385243. The next prime is 4645385257. The reversal of 4645385249 is 9425835464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4351777024 + 293608225 = 65968^2 + 17135^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645385249 - 2²⁰ = 4644336673 is a prime.

It is a super-2 number, since 2×4645385249² = 43159208223253584002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4645385197 and 4645385206.

It is not a weakly prime, because it can be changed into another prime (4645385243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322692624 + 2322692625.

It is an arithmetic number, because the mean of its divisors is an integer number (2322692625).

Almost surely, 2^4645385249 is an apocalyptic number.

It is an amenable number.

4645385249 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645385249 is an equidigital number, since it uses as much as digits as its factorization.

4645385249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 50.

The square root of 4645385249 is about 68157.0630896021. The cubic root of 4645385249 is about 1668.5552002474. Note that the first 3 decimals are identical.

The spelling of 4645385249 in words is "four billion, six hundred forty-five million, three hundred eighty-five thousand, two hundred forty-nine".