8539154772 has 24 divisors (see below), whose sum is σ = 19926495456. Its totient is φ = 2846127648.

The previous prime is 8539154713. The next prime is 8539154801. The reversal of 8539154772 is 2774519358.

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 7 ways as a sum of consecutive naturals, for example, 145303 + ... + 195425.

It is an arithmetic number, because the mean of its divisors is an integer number (830270644).

Almost surely, 2^8539154772 is an apocalyptic number.

It is an amenable number.

8539154772 is an abundant number, since it is smaller than the sum of its proper divisors (11387340684).

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

8539154772 is a wasteful number, since it uses less digits than its factorization.

8539154772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64327 (or 64325 counting only the distinct ones).

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

The square root of 8539154772 is about 92407.5471593094. The cubic root of 8539154772 is about 2043.9564040191.

The spelling of 8539154772 in words is "eight billion, five hundred thirty-nine million, one hundred fifty-four thousand, seven hundred seventy-two".