8645574132 has 36 divisors (see below), whose sum is σ = 23535175300. Its totient is φ = 2660176512.

The previous prime is 8645574083. The next prime is 8645574151. The reversal of 8645574132 is 2314755468.

8645574132 is a `hidden beast` number, since 8 + 6 + 45 + 574 + 1 + 32 = 666.

8645574132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 750540816 + 7895033316 = 27396^2 + 88854^2 .

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

It is a super-3 number, since 3×8645574132³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9236257 + ... + 9237192.

Almost surely, 2^8645574132 is an apocalyptic number.

It is an amenable number.

8645574132 is an abundant number, since it is smaller than the sum of its proper divisors (14889601168).

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

8645574132 is a wasteful number, since it uses less digits than its factorization.

8645574132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18473472 (or 18473467 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 8645574132 is about 92981.5795305715. The cubic root of 8645574132 is about 2052.4123203911.

The spelling of 8645574132 in words is "eight billion, six hundred forty-five million, five hundred seventy-four thousand, one hundred thirty-two".