2187546912 has 240 divisors, whose sum is σ = 6936320160. Its totient is φ = 674085888.

The previous prime is 2187546887. The next prime is 2187546913. The reversal of 2187546912 is 2196457812.

2187546912 is a `hidden beast` number, since 2 + 18 + 7 + 546 + 91 + 2 = 666.

It is a super-2 number, since 2×2187546912² = 9570722984401471488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187546913) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2117148 + ... + 2118180.

It is an arithmetic number, because the mean of its divisors is an integer number (28901334).

Almost surely, 2^2187546912 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 2187546912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3468160080).

2187546912 is an abundant number, since it is smaller than the sum of its proper divisors (4748773248).

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

2187546912 is a wasteful number, since it uses less digits than its factorization.

2187546912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1100 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2187546912 is about 46771.2188423607. The cubic root of 2187546912 is about 1298.1328050263.

The spelling of 2187546912 in words is "two billion, one hundred eighty-seven million, five hundred forty-six thousand, nine hundred twelve".