8521986072 has 16 divisors (see below), whose sum is σ = 21304965240. Its totient is φ = 2840662016.

The previous prime is 8521986043. The next prime is 8521986097. The reversal of 8521986072 is 2706891258.

It is a super-2 number, since 2×8521986072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177541353 + ... + 177541400.

Almost surely, 2^8521986072 is an apocalyptic number.

It is an amenable number.

8521986072 is an abundant number, since it is smaller than the sum of its proper divisors (12782979168).

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

8521986072 is a wasteful number, since it uses less digits than its factorization.

8521986072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355082762 (or 355082758 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 8521986072 is about 92314.6037851000. The cubic root of 8521986072 is about 2042.5856352840.

The spelling of 8521986072 in words is "eight billion, five hundred twenty-one million, nine hundred eighty-six thousand, seventy-two".