8521939488 has 48 divisors (see below), whose sum is σ = 22392429696. Its totient is φ = 2837809920.

The previous prime is 8521939471. The next prime is 8521939519. The reversal of 8521939488 is 8849391258.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 53433 + ... + 141063.

It is an arithmetic number, because the mean of its divisors is an integer number (466508952).

Almost surely, 2^8521939488 is an apocalyptic number.

It is an amenable number.

8521939488 is an abundant number, since it is smaller than the sum of its proper divisors (13870490208).

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

8521939488 is a wasteful number, since it uses less digits than its factorization.

8521939488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88657 (or 88649 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 57.

The square root of 8521939488 is about 92314.3514736468. The cubic root of 8521939488 is about 2042.5819134606.

The spelling of 8521939488 in words is "eight billion, five hundred twenty-one million, nine hundred thirty-nine thousand, four hundred eighty-eight".