8521390848 has 54 divisors (see below), whose sum is σ = 22686137292. Its totient is φ = 2839610880.

The previous prime is 8521390831. The next prime is 8521390859. The reversal of 8521390848 is 8480931258.

It is a super-2 number, since 2×8521390848² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 8521390797 and 8521390806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2556543 + ... + 2559873.

Almost surely, 2^8521390848 is an apocalyptic number.

It is an amenable number.

8521390848 is an abundant number, since it is smaller than the sum of its proper divisors (14164746444).

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

8521390848 is an frugal number, since it uses more digits than its factorization.

8521390848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 8521390848 is about 92311.3798401909. The cubic root of 8521390848 is about 2042.5380789089.

Multiplying 8521390848 by its sum of digits (48), we get a square (409026760704 = 639552²).

8521390848 divided by its sum of digits (48) gives a square (177528976 = 13324²).

The spelling of 8521390848 in words is "eight billion, five hundred twenty-one million, three hundred ninety thousand, eight hundred forty-eight".