28819852612 has 24 divisors (see below), whose sum is σ = 54090892800. Its totient is φ = 13393931616.

The previous prime is 28819852549. The next prime is 28819852627. The reversal of 28819852612 is 21625891882.

It is a self number, because there is not a number n which added to its sum of digits gives 28819852612.

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, 3573412 + ... + 3581467.

It is an arithmetic number, because the mean of its divisors is an integer number (2253787200).

Almost surely, 2^28819852612 is an apocalyptic number.

It is an amenable number.

28819852612 is a deficient number, since it is larger than the sum of its proper divisors (25271040188).

28819852612 is a wasteful number, since it uses less digits than its factorization.

28819852612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154955 (or 7154953 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 52.

The spelling of 28819852612 in words is "twenty-eight billion, eight hundred nineteen million, eight hundred fifty-two thousand, six hundred twelve".