2187112851 has 48 divisors (see below), whose sum is σ = 3950419200. Its totient is φ = 1132781760.

The previous prime is 2187112771. The next prime is 2187112859. The reversal of 2187112851 is 1582117812.

It is not a de Polignac number, because 2187112851 - 2¹¹ = 2187110803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2187112859) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 237336 + ... + 246378.

It is an arithmetic number, because the mean of its divisors is an integer number (82300400).

Almost surely, 2^2187112851 is an apocalyptic number.

2187112851 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2187112851 is a deficient number, since it is larger than the sum of its proper divisors (1763306349).

2187112851 is a wasteful number, since it uses less digits than its factorization.

2187112851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416 (or 9413 counting only the distinct ones).

The product of its digits is 8960, while the sum is 36.

The square root of 2187112851 is about 46766.5783546327. The cubic root of 2187112851 is about 1298.0469392721.

The spelling of 2187112851 in words is "two billion, one hundred eighty-seven million, one hundred twelve thousand, eight hundred fifty-one".