2864865180 has 96 divisors (see below), whose sum is σ = 8224602624. Its totient is φ = 744816384.

The previous prime is 2864865161. The next prime is 2864865181. The reversal of 2864865180 is 815684682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864865181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515577 + ... + 521103.

It is an arithmetic number, because the mean of its divisors is an integer number (85672944).

Almost surely, 2^2864865180 is an apocalyptic number.

2864865180 is a gapful number since it is divisible by the number (20) 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 2864865180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4112301312).

2864865180 is an abundant number, since it is smaller than the sum of its proper divisors (5359737444).

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

2864865180 is a wasteful number, since it uses less digits than its factorization.

2864865180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755 (or 5753 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 2864865180 is about 53524.4353543314. The cubic root of 2864865180 is about 1420.2606775282.

The spelling of 2864865180 in words is "two billion, eight hundred sixty-four million, eight hundred sixty-five thousand, one hundred eighty".