43520224645 has 8 divisors (see below), whose sum is σ = 52440969240. Its totient is φ = 34671713280.

The previous prime is 43520224639. The next prime is 43520224651. The reversal of 43520224645 is 54642202534.

It is an interprime number because it is at equal distance from previous prime (43520224639) and next prime (43520224651).

It can be written as a sum of positive squares in 4 ways, for example, as 1485794116 + 42034430529 = 38546^2 + 205023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43520224645 - 2³ = 43520224637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18056980 + ... + 18059389.

It is an arithmetic number, because the mean of its divisors is an integer number (6555121155).

Almost surely, 2^43520224645 is an apocalyptic number.

It is an amenable number.

43520224645 is a deficient number, since it is larger than the sum of its proper divisors (8920744595).

43520224645 is a wasteful number, since it uses less digits than its factorization.

43520224645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36116615.

The product of its (nonzero) digits is 230400, while the sum is 37.

The spelling of 43520224645 in words is "forty-three billion, five hundred twenty million, two hundred twenty-four thousand, six hundred forty-five".