2865791216 has 20 divisors (see below), whose sum is σ = 5556080400. Its totient is φ = 1431964032.

The previous prime is 2865791213. The next prime is 2865791219. The reversal of 2865791216 is 6121975682.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2865791213) and next prime (2865791219).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865791213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32501 + ... + 82388.

It is an arithmetic number, because the mean of its divisors is an integer number (277804020).

Almost surely, 2^2865791216 is an apocalyptic number.

It is an amenable number.

2865791216 is a deficient number, since it is larger than the sum of its proper divisors (2690289184).

2865791216 is a wasteful number, since it uses less digits than its factorization.

2865791216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116456 (or 116450 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 2865791216 is about 53533.0852464156. The cubic root of 2865791216 is about 1420.4136888976.

The spelling of 2865791216 in words is "two billion, eight hundred sixty-five million, seven hundred ninety-one thousand, two hundred sixteen".