8516449368 has 96 divisors (see below), whose sum is σ = 26553065760. Its totient is φ = 2415490560.

The previous prime is 8516449351. The next prime is 8516449393. The reversal of 8516449368 is 8639446158.

8516449368 is a `hidden beast` number, since 85 + 16 + 4 + 493 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7378 + ... + 130718.

It is an arithmetic number, because the mean of its divisors is an integer number (276594435).

Almost surely, 2^8516449368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8516449368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13276532880).

8516449368 is an abundant number, since it is smaller than the sum of its proper divisors (18036616392).

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

8516449368 is a wasteful number, since it uses less digits than its factorization.

8516449368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123497 (or 123490 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 8516449368 is about 92284.6106780540. The cubic root of 8516449368 is about 2042.1431859134.

The spelling of 8516449368 in words is "eight billion, five hundred sixteen million, four hundred forty-nine thousand, three hundred sixty-eight".