8324416521 has 16 divisors (see below), whose sum is σ = 12390925120. Its totient is φ = 5523305760.

The previous prime is 8324416511. The next prime is 8324416523. The reversal of 8324416521 is 1256144238.

It is a happy number.

8324416521 is a `hidden beast` number, since 83 + 2 + 44 + 16 + 521 = 666.

It is not a de Polignac number, because 8324416521 - 2⁷ = 8324416393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8324416523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724900 + ... + 736293.

It is an arithmetic number, because the mean of its divisors is an integer number (774432820).

Almost surely, 2^8324416521 is an apocalyptic number.

It is an amenable number.

8324416521 is a deficient number, since it is larger than the sum of its proper divisors (4066508599).

8324416521 is a wasteful number, since it uses less digits than its factorization.

8324416521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461413 (or 1461407 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 8324416521 is about 91238.2404532222. The cubic root of 8324416521 is about 2026.6772890711.

The spelling of 8324416521 in words is "eight billion, three hundred twenty-four million, four hundred sixteen thousand, five hundred twenty-one".