4432878645 has 32 divisors (see below), whose sum is σ = 7742848512. Its totient is φ = 2152438272.

The previous prime is 4432878613. The next prime is 4432878661. The reversal of 4432878645 is 5468782344.

It is not a de Polignac number, because 4432878645 - 2⁵ = 4432878613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141469 + ... + 169938.

It is an arithmetic number, because the mean of its divisors is an integer number (241964016).

Almost surely, 2^4432878645 is an apocalyptic number.

It is an amenable number.

4432878645 is a deficient number, since it is larger than the sum of its proper divisors (3309969867).

4432878645 is a wasteful number, since it uses less digits than its factorization.

4432878645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311501.

The product of its digits is 5160960, while the sum is 51.

The square root of 4432878645 is about 66579.8666640299. The cubic root of 4432878645 is about 1642.7139582600.

The spelling of 4432878645 in words is "four billion, four hundred thirty-two million, eight hundred seventy-eight thousand, six hundred forty-five".