84233172852 has 36 divisors (see below), whose sum is σ = 213002052900. Its totient is φ = 28067265792.

The previous prime is 84233172847. The next prime is 84233172887. The reversal of 84233172852 is 25827133248.

84233172852 is a `hidden beast` number, since 8 + 423 + 3 + 172 + 8 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68039592336 + 16193580516 = 260844^2 + 127254^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 84233172798 and 84233172807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337477 + ... + 531372.

Almost surely, 2^84233172852 is an apocalyptic number.

It is an amenable number.

84233172852 is an abundant number, since it is smaller than the sum of its proper divisors (128768880048).

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

84233172852 is a wasteful number, since it uses less digits than its factorization.

84233172852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871552 (or 871547 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 84233172852 in words is "eighty-four billion, two hundred thirty-three million, one hundred seventy-two thousand, eight hundred fifty-two".