2187272612 has 24 divisors (see below), whose sum is σ = 4492778304. Its totient is φ = 912066912.

The previous prime is 2187272537. The next prime is 2187272617. The reversal of 2187272612 is 2162727812.

It is a super-2 number, since 2×2187272612² = 9568322958410605088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2187272617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054598 + ... + 1056669.

It is an arithmetic number, because the mean of its divisors is an integer number (187199096).

Almost surely, 2^2187272612 is an apocalyptic number.

It is an amenable number.

2187272612 is an abundant number, since it is smaller than the sum of its proper divisors (2305505692).

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

2187272612 is a wasteful number, since it uses less digits than its factorization.

2187272612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111315 (or 2111313 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 2187272612 is about 46768.2863915282. The cubic root of 2187272612 is about 1298.0785444433.

The spelling of 2187272612 in words is "two billion, one hundred eighty-seven million, two hundred seventy-two thousand, six hundred twelve".