2101288872 has 32 divisors (see below), whose sum is σ = 5422682880. Its totient is φ = 677834880.

The previous prime is 2101288853. The next prime is 2101288883. The reversal of 2101288872 is 2788821012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101288872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411413 + ... + 1412900.

It is an arithmetic number, because the mean of its divisors is an integer number (169458840).

Almost surely, 2^2101288872 is an apocalyptic number.

It is an amenable number.

2101288872 is an abundant number, since it is smaller than the sum of its proper divisors (3321394008).

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

2101288872 is a wasteful number, since it uses less digits than its factorization.

2101288872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824353 (or 2824349 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 2101288872 is about 45839.8175389039. The cubic root of 2101288872 is about 1280.8410959526.

The spelling of 2101288872 in words is "two billion, one hundred one million, two hundred eighty-eight thousand, eight hundred seventy-two".