43423520652 has 18 divisors (see below), whose sum is σ = 109765010628. Its totient is φ = 14474506872.

The previous prime is 43423520639. The next prime is 43423520659. The reversal of 43423520652 is 25602532434.

43423520652 is a `hidden beast` number, since 43 + 42 + 3 + 520 + 6 + 52 = 666.

43423520652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1206208907 = 43423520652 / (4 + 3 + 4 + 2 + 3 + 5 + 2 + 0 + 6 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (43423520659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 603104418 + ... + 603104489.

It is an arithmetic number, because the mean of its divisors is an integer number (6098056146).

Almost surely, 2^43423520652 is an apocalyptic number.

It is an amenable number.

43423520652 is an abundant number, since it is smaller than the sum of its proper divisors (66341489976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43423520652 is a wasteful number, since it uses less digits than its factorization.

43423520652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206208917 (or 1206208912 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The spelling of 43423520652 in words is "forty-three billion, four hundred twenty-three million, five hundred twenty thousand, six hundred fifty-two".