2187252912 has 320 divisors, whose sum is σ = 6803564544. Its totient is φ = 599162880.

The previous prime is 2187252889. The next prime is 2187252923. The reversal of 2187252912 is 2192527812.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20441563 + ... + 20441669.

Almost surely, 2^2187252912 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 2187252912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3401782272).

2187252912 is an abundant number, since it is smaller than the sum of its proper divisors (4616311632).

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

2187252912 is a wasteful number, since it uses less digits than its factorization.

2187252912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 230 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 2187252912 is about 46768.0757782486. The cubic root of 2187252912 is about 1298.0746473183.

The spelling of 2187252912 in words is "two billion, one hundred eighty-seven million, two hundred fifty-two thousand, nine hundred twelve".