8539147572 has 48 divisors (see below), whose sum is σ = 20435577792. Its totient is φ = 2773566720.

The previous prime is 8539147571. The next prime is 8539147621. The reversal of 8539147572 is 2757419358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539147571) 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 15 ways as a sum of consecutive naturals, for example, 409503 + ... + 429849.

It is an arithmetic number, because the mean of its divisors is an integer number (425741204).

Almost surely, 2^8539147572 is an apocalyptic number.

8539147572 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8539147572 is an abundant number, since it is smaller than the sum of its proper divisors (11896430220).

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

8539147572 is a wasteful number, since it uses less digits than its factorization.

8539147572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21248 (or 21246 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 8539147572 is about 92407.5082014443. The cubic root of 8539147572 is about 2043.9558295481.

The spelling of 8539147572 in words is "eight billion, five hundred thirty-nine million, one hundred forty-seven thousand, five hundred seventy-two".