8477865216 has 144 divisors (see below), whose sum is σ = 25193689920. Its totient is φ = 2812078080.

The previous prime is 8477865199. The next prime is 8477865247. The reversal of 8477865216 is 6125687748.

8477865216 is a `hidden beast` number, since 8 + 47 + 78 + 6 + 521 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455526 + ... + 1461338.

It is an arithmetic number, because the mean of its divisors is an integer number (174956180).

Almost surely, 2^8477865216 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 8477865216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12596844960).

8477865216 is an abundant number, since it is smaller than the sum of its proper divisors (16715824704).

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

8477865216 is a wasteful number, since it uses less digits than its factorization.

8477865216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049 (or 6029 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 8477865216 is about 92075.3235997572. The cubic root of 8477865216 is about 2039.0545099531.

The spelling of 8477865216 in words is "eight billion, four hundred seventy-seven million, eight hundred sixty-five thousand, two hundred sixteen".