2679865216 has 64 divisors (see below), whose sum is σ = 6133488480. Its totient is φ = 1142489088.

The previous prime is 2679865211. The next prime is 2679865229. The reversal of 2679865216 is 6125689762.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2679865211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165180 + ... + 180676.

Almost surely, 2^2679865216 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 2679865216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3066744240).

2679865216 is an abundant number, since it is smaller than the sum of its proper divisors (3453623264).

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

2679865216 is a wasteful number, since it uses less digits than its factorization.

2679865216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15711 (or 15699 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 2679865216 is about 51767.4146157600. The cubic root of 2679865216 is about 1389.0066252699.

The spelling of 2679865216 in words is "two billion, six hundred seventy-nine million, eight hundred sixty-five thousand, two hundred sixteen".