4509449971 has 16 divisors (see below), whose sum is σ = 5144446944. Its totient is φ = 3915846144.

The previous prime is 4509449963. The next prime is 4509449977. The reversal of 4509449971 is 1799449054.

It is a cyclic number.

It is not a de Polignac number, because 4509449971 - 2³ = 4509449963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4509449977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674481 + ... + 681133.

It is an arithmetic number, because the mean of its divisors is an integer number (321527934).

Almost surely, 2^4509449971 is an apocalyptic number.

4509449971 is a deficient number, since it is larger than the sum of its proper divisors (634996973).

4509449971 is a wasteful number, since it uses less digits than its factorization.

4509449971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 4509449971 is about 67152.4383101612. The cubic root of 4509449971 is about 1652.1184874132.

The spelling of 4509449971 in words is "four billion, five hundred nine million, four hundred forty-nine thousand, nine hundred seventy-one".