2115875880 has 96 divisors (see below), whose sum is σ = 6930892800. Its totient is φ = 559778688.

The previous prime is 2115875851. The next prime is 2115875917. The reversal of 2115875880 is 885785112.

2115875880 is a `hidden beast` number, since 2 + 11 + 58 + 7 + 588 + 0 = 666.

2115875880 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2115875880³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22581 + ... + 68859.

It is an arithmetic number, because the mean of its divisors is an integer number (72196800).

Almost surely, 2^2115875880 is an apocalyptic number.

2115875880 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 2115875880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3465446400).

2115875880 is an abundant number, since it is smaller than the sum of its proper divisors (4815016920).

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

2115875880 is a wasteful number, since it uses less digits than its factorization.

2115875880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46423 (or 46416 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 45.

The square root of 2115875880 is about 45998.6508497804. The cubic root of 2115875880 is about 1283.7981020075.

The spelling of 2115875880 in words is "two billion, one hundred fifteen million, eight hundred seventy-five thousand, eight hundred eighty".