8572445380 has 12 divisors (see below), whose sum is σ = 18002135340. Its totient is φ = 3428978144.

The previous prime is 8572445369. The next prime is 8572445389. The reversal of 8572445380 is 835442758.

It can be written as a sum of positive squares in 2 ways, for example, as 5278603716 + 3293841664 = 72654^2 + 57392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8572445380.

It is not an unprimeable number, because it can be changed into a prime (8572445389) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 214311115 + ... + 214311154.

It is an arithmetic number, because the mean of its divisors is an integer number (1500177945).

Almost surely, 2^8572445380 is an apocalyptic number.

It is an amenable number.

8572445380 is an abundant number, since it is smaller than the sum of its proper divisors (9429689960).

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

8572445380 is a wasteful number, since it uses less digits than its factorization.

8572445380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428622278 (or 428622276 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 46.

The square root of 8572445380 is about 92587.5012083164. The cubic root of 8572445380 is about 2046.6091379435.

The spelling of 8572445380 in words is "eight billion, five hundred seventy-two million, four hundred forty-five thousand, three hundred eighty".