2865897216 has 216 divisors, whose sum is σ = 10170698720. Its totient is φ = 755785728.

The previous prime is 2865897193. The next prime is 2865897227. The reversal of 2865897216 is 6127985682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202830 + ... + 216498.

Almost surely, 2^2865897216 is an apocalyptic number.

2865897216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2865897216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5085349360).

2865897216 is an abundant number, since it is smaller than the sum of its proper divisors (7304801504).

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

2865897216 is a wasteful number, since it uses less digits than its factorization.

2865897216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13711 (or 13694 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 2865897216 is about 53534.0752792088. The cubic root of 2865897216 is about 1420.4312014544.

The spelling of 2865897216 in words is "two billion, eight hundred sixty-five million, eight hundred ninety-seven thousand, two hundred sixteen".