2821010872 has 64 divisors (see below), whose sum is σ = 5756145120. Its totient is φ = 1290928128.

The previous prime is 2821010867. The next prime is 2821010887. The reversal of 2821010872 is 2780101282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501998 + ... + 1503874.

Almost surely, 2^2821010872 is an apocalyptic number.

It is an amenable number.

2821010872 is an abundant number, since it is smaller than the sum of its proper divisors (2935134248).

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

2821010872 is a wasteful number, since it uses less digits than its factorization.

2821010872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 2821010872 is about 53113.1892471164. The cubic root of 2821010872 is about 1412.9764383545.

The spelling of 2821010872 in words is "two billion, eight hundred twenty-one million, ten thousand, eight hundred seventy-two".