2187572748 has 12 divisors (see below), whose sum is σ = 5104336440. Its totient is φ = 729190912.

The previous prime is 2187572729. The next prime is 2187572759. The reversal of 2187572748 is 8472757812.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2187572748.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 91148853 + ... + 91148876.

It is an arithmetic number, because the mean of its divisors is an integer number (425361370).

Almost surely, 2^2187572748 is an apocalyptic number.

It is an amenable number.

2187572748 is an abundant number, since it is smaller than the sum of its proper divisors (2916763692).

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

2187572748 is a wasteful number, since it uses less digits than its factorization.

2187572748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182297736 (or 182297734 counting only the distinct ones).

The product of its digits is 1756160, while the sum is 51.

The square root of 2187572748 is about 46771.4950370415. The cubic root of 2187572748 is about 1298.1379155341.

The spelling of 2187572748 in words is "two billion, one hundred eighty-seven million, five hundred seventy-two thousand, seven hundred forty-eight".