2821816672 has 48 divisors (see below), whose sum is σ = 5993289792. Its totient is φ = 1302845440.

The previous prime is 2821816651. The next prime is 2821816727. The reversal of 2821816672 is 2766181282.

It is a happy number.

It is a congruent number.

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, 20104 + ... + 77767.

It is an arithmetic number, because the mean of its divisors is an integer number (124860204).

Almost surely, 2^2821816672 is an apocalyptic number.

It is an amenable number.

2821816672 is an abundant number, since it is smaller than the sum of its proper divisors (3171473120).

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

2821816672 is a wasteful number, since it uses less digits than its factorization.

2821816672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97951 (or 97943 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 2821816672 is about 53120.7743919458. The cubic root of 2821816672 is about 1413.1109608211.

The spelling of 2821816672 in words is "two billion, eight hundred twenty-one million, eight hundred sixteen thousand, six hundred seventy-two".