423534636432 has 50 divisors (see below), whose sum is σ = 1225832118918. Its totient is φ = 141178211712.

The previous prime is 423534636389. The next prime is 423534636433. The reversal of 423534636432 is 234636435324.

423534636432 is a `hidden beast` number, since 4 + 2 + 3 + 5 + 3 + 4 + 636 + 4 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 392873225616 + 30661410816 = 626796^2 + 175104^2 .

It is not an unprimeable number, because it can be changed into a prime (423534636433) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 163399413 + ... + 163402004.

Almost surely, 2^423534636432 is an apocalyptic number.

It is an amenable number.

423534636432 is an abundant number, since it is smaller than the sum of its proper divisors (802297482486).

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

423534636432 is a wasteful number, since it uses less digits than its factorization.

423534636432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326801437 (or 326801422 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 45.

The spelling of 423534636432 in words is "four hundred twenty-three billion, five hundred thirty-four million, six hundred thirty-six thousand, four hundred thirty-two".