2868215616 has 224 divisors, whose sum is σ = 9802368000. Its totient is φ = 805400064.

The previous prime is 2868215599. The next prime is 2868215657. The reversal of 2868215616 is 6165128682.

2868215616 is a `hidden beast` number, since 2 + 8 + 6 + 8 + 21 + 5 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711655 + ... + 715673.

Almost surely, 2^2868215616 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 2868215616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4901184000).

2868215616 is an abundant number, since it is smaller than the sum of its proper divisors (6934152384).

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

2868215616 is a wasteful number, since it uses less digits than its factorization.

2868215616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106 (or 4090 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 2868215616 is about 53555.7243999183. The cubic root of 2868215616 is about 1420.8141228509.

The spelling of 2868215616 in words is "two billion, eight hundred sixty-eight million, two hundred fifteen thousand, six hundred sixteen".