28228154876 has 12 divisors (see below), whose sum is σ = 49400744400. Its totient is φ = 14113656480.

The previous prime is 28228154861. The next prime is 28228154881. The reversal of 28228154876 is 67845182282.

It is a happy number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 83081 + ... + 251711.

It is an arithmetic number, because the mean of its divisors is an integer number (4116728700).

Almost surely, 2^28228154876 is an apocalyptic number.

It is an amenable number.

28228154876 is a deficient number, since it is larger than the sum of its proper divisors (21172589524).

28228154876 is a wasteful number, since it uses less digits than its factorization.

28228154876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210484 (or 210482 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 53.

The spelling of 28228154876 in words is "twenty-eight billion, two hundred twenty-eight million, one hundred fifty-four thousand, eight hundred seventy-six".