2865563180 has 48 divisors (see below), whose sum is σ = 6381408096. Its totient is φ = 1077150720.

The previous prime is 2865563179. The next prime is 2865563189. The reversal of 2865563180 is 813655682.

It is a super-2 number, since 2×2865563180² = 16422904677143424800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2865563189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228842 + ... + 241038.

It is an arithmetic number, because the mean of its divisors is an integer number (132946002).

Almost surely, 2^2865563180 is an apocalyptic number.

2865563180 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 2865563180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3190704048).

2865563180 is an abundant number, since it is smaller than the sum of its proper divisors (3515844916).

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

2865563180 is a wasteful number, since it uses less digits than its factorization.

2865563180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914 (or 12912 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 2865563180 is about 53530.9553436140. The cubic root of 2865563180 is about 1420.3760129676.

The spelling of 2865563180 in words is "two billion, eight hundred sixty-five million, five hundred sixty-three thousand, one hundred eighty".