2115765000 has 120 divisors (see below), whose sum is σ = 7160606310. Its totient is φ = 564192000.

The previous prime is 2115764999. The next prime is 2115765017. The reversal of 2115765000 is 5675112.

2115765000 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 7 + 650 + 0 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 342176004 + 1773588996 = 18498^2 + 42114^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 21492 + ... + 68508.

Almost surely, 2^2115765000 is an apocalyptic number.

2115765000 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 2115765000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3580303155).

2115765000 is an abundant number, since it is smaller than the sum of its proper divisors (5044841310).

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

2115765000 is a wasteful number, since it uses less digits than its factorization.

2115765000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47049 (or 47027 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 2115765000 is about 45997.4455812494. The cubic root of 2115765000 is about 1283.7756763033.

The spelling of 2115765000 in words is "two billion, one hundred fifteen million, seven hundred sixty-five thousand".