8539372668 has 12 divisors (see below), whose sum is σ = 19925202920. Its totient is φ = 2846457552.

The previous prime is 8539372661. The next prime is 8539372691. The reversal of 8539372668 is 8662739358.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539372661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355807183 + ... + 355807206.

Almost surely, 2^8539372668 is an apocalyptic number.

It is an amenable number.

8539372668 is an abundant number, since it is smaller than the sum of its proper divisors (11385830252).

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

8539372668 is a wasteful number, since it uses less digits than its factorization.

8539372668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711614396 (or 711614394 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The square root of 8539372668 is about 92408.7261463981. The cubic root of 8539372668 is about 2043.9737892736.

The spelling of 8539372668 in words is "eight billion, five hundred thirty-nine million, three hundred seventy-two thousand, six hundred sixty-eight".