8539204640 has 48 divisors (see below), whose sum is σ = 20179575360. Its totient is φ = 3414716160.

The previous prime is 8539204627. The next prime is 8539204649. The reversal of 8539204640 is 464029358.

It is not an unprimeable number, because it can be changed into a prime (8539204649) 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 7 ways as a sum of consecutive naturals, for example, 900725 + ... + 910155.

It is an arithmetic number, because the mean of its divisors is an integer number (420407820).

Almost surely, 2^8539204640 is an apocalyptic number.

8539204640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8539204640 is an abundant number, since it is smaller than the sum of its proper divisors (11640370720).

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

8539204640 is a wasteful number, since it uses less digits than its factorization.

8539204640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15105 (or 15097 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 8539204640 is about 92407.8169853611. The cubic root of 8539204640 is about 2043.9603828602.

The spelling of 8539204640 in words is "eight billion, five hundred thirty-nine million, two hundred four thousand, six hundred forty".