84539430432 has 90 divisors (see below), whose sum is σ = 248671659159. Its totient is φ = 28174875840.

The previous prime is 84539430421. The next prime is 84539430439. The reversal of 84539430432 is 23403493548.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

84539430432 is a `hidden beast` number, since 84 + 53 + 94 + 3 + 0 + 432 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42269715216 + 42269715216 = 205596^2 + 205596^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=205596.

It is not an unprimeable number, because it can be changed into a prime (84539430439) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 14800057 + ... + 14805767.

Almost surely, 2^84539430432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84539430432

84539430432 is an abundant number, since it is smaller than the sum of its proper divisors (164132228727).

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

84539430432 is an frugal number, since it uses more digits than its factorization.

84539430432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11444 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

It can be divided in two parts, 845394 and 30432, that added together give a triangular number (875826 = T₁₃₂₃).

The spelling of 84539430432 in words is "eighty-four billion, five hundred thirty-nine million, four hundred thirty thousand, four hundred thirty-two".