43552878416 has 20 divisors (see below), whose sum is σ = 84688344852. Its totient is φ = 21697821696.

The previous prime is 43552878371. The next prime is 43552878431. The reversal of 43552878416 is 61487825534.

It can be written as a sum of positive squares in 2 ways, for example, as 16255230016 + 27297648400 = 127496^2 + 165220^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4909025 + ... + 4917888.

Almost surely, 2^43552878416 is an apocalyptic number.

It is an amenable number.

43552878416 is a deficient number, since it is larger than the sum of its proper divisors (41135466436).

43552878416 is a wasteful number, since it uses less digits than its factorization.

43552878416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9827198 (or 9827192 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 53.

The spelling of 43552878416 in words is "forty-three billion, five hundred fifty-two million, eight hundred seventy-eight thousand, four hundred sixteen".