2821512268 has 12 divisors (see below), whose sum is σ = 4939540200. Its totient is φ = 1410215072.

The previous prime is 2821512259. The next prime is 2821512271. The reversal of 2821512268 is 8622151282.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123418 + ... + 144481.

It is an arithmetic number, because the mean of its divisors is an integer number (411628350).

Almost surely, 2^2821512268 is an apocalyptic number.

It is an amenable number.

2821512268 is a deficient number, since it is larger than the sum of its proper divisors (2118027932).

2821512268 is a wasteful number, since it uses less digits than its factorization.

2821512268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270536 (or 270534 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 2821512268 is about 53117.9091079459. The cubic root of 2821512268 is about 1413.0601457910.

The spelling of 2821512268 in words is "two billion, eight hundred twenty-one million, five hundred twelve thousand, two hundred sixty-eight".