28811830156 has 24 divisors (see below), whose sum is σ = 52054661120. Its totient is φ = 13939203600.

The previous prime is 28811830133. The next prime is 28811830171. The reversal of 28811830156 is 65103811882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212235 + ... + 1235773.

Almost surely, 2^28811830156 is an apocalyptic number.

It is an amenable number.

28811830156 is a deficient number, since it is larger than the sum of its proper divisors (23242830964).

28811830156 is a wasteful number, since it uses less digits than its factorization.

28811830156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33445 (or 33443 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 28811830156 in words is "twenty-eight billion, eight hundred eleven million, eight hundred thirty thousand, one hundred fifty-six".