8464555125 has 108 divisors (see below), whose sum is σ = 16601489892. Its totient is φ = 4147416000.

The previous prime is 8464555087. The next prime is 8464555189. The reversal of 8464555125 is 5215554648.

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.

8464555125 is a `hidden beast` number, since 84 + 6 + 4 + 55 + 512 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 5963855076 + 2500700049 = 77226^2 + 50007^2 .

It is not a de Polignac number, because 8464555125 - 2⁷ = 8464554997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 107 ways as a sum of consecutive naturals, for example, 40116270 + ... + 40116480.

It is an arithmetic number, because the mean of its divisors is an integer number (153717499).

Almost surely, 2^8464555125 is an apocalyptic number.

It is an amenable number.

8464555125 is a deficient number, since it is larger than the sum of its proper divisors (8136934767).

8464555125 is a wasteful number, since it uses less digits than its factorization.

8464555125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 232 counting only the distinct ones).

The product of its digits is 960000, while the sum is 45.

The square root of 8464555125 is about 92003.0169342288. The cubic root of 8464555125 is about 2037.9868584516.

Multiplying 8464555125 by its sum of digits (45), we get a square (380904980625 = 617175²).

8464555125 divided by its sum of digits (45) gives a square (188101225 = 13715²).

The spelling of 8464555125 in words is "eight billion, four hundred sixty-four million, five hundred fifty-five thousand, one hundred twenty-five".