4549545909 has 12 divisors (see below), whose sum is σ = 6636632652. Its totient is φ = 3003000000.

The previous prime is 4549545907. The next prime is 4549545911. The reversal of 4549545909 is 9095459454.

4549545909 is a `hidden beast` number, since 4 + 5 + 4 + 9 + 545 + 90 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (4549545907) and next prime (4549545911).

It can be written as a sum of positive squares in 2 ways, for example, as 2570185809 + 1979360100 = 50697^2 + 44490^2 .

It is not a de Polignac number, because 4549545909 - 2¹ = 4549545907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4549545907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2501592 + ... + 2503409.

It is an arithmetic number, because the mean of its divisors is an integer number (553052721).

Almost surely, 2^4549545909 is an apocalyptic number.

It is an amenable number.

4549545909 is a deficient number, since it is larger than the sum of its proper divisors (2087086743).

4549545909 is a wasteful number, since it uses less digits than its factorization.

4549545909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005108 (or 5005105 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The square root of 4549545909 is about 67450.3217857409. The cubic root of 4549545909 is about 1657.0006696653. Note that the first 3 decimals are identical.

The spelling of 4549545909 in words is "four billion, five hundred forty-nine million, five hundred forty-five thousand, nine hundred nine".