28678919076 has 48 divisors (see below), whose sum is σ = 76916649600. Its totient is φ = 9229995936.

The previous prime is 28678919069. The next prime is 28678919209. The reversal of 28678919076 is 67091987682.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4575240 + ... + 4581503.

It is an arithmetic number, because the mean of its divisors is an integer number (1602430200).

Almost surely, 2^28678919076 is an apocalyptic number.

It is an amenable number.

28678919076 is an abundant number, since it is smaller than the sum of its proper divisors (48237730524).

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

28678919076 is a wasteful number, since it uses less digits than its factorization.

28678919076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9156785 (or 9156777 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 28678919076 in words is "twenty-eight billion, six hundred seventy-eight million, nine hundred nineteen thousand, seventy-six".