28951026828 has 24 divisors (see below), whose sum is σ = 67555244400. Its totient is φ = 9649935360.

The previous prime is 28951026823. The next prime is 28951026847. The reversal of 28951026828 is 82862015982.

It is not an unprimeable number, because it can be changed into a prime (28951026823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419748 + ... + 483828.

It is an arithmetic number, because the mean of its divisors is an integer number (2814801850).

Almost surely, 2^28951026828 is an apocalyptic number.

It is an amenable number.

28951026828 is an abundant number, since it is smaller than the sum of its proper divisors (38604217572).

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

28951026828 is a wasteful number, since it uses less digits than its factorization.

28951026828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101737 (or 101735 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 28951026828 in words is "twenty-eight billion, nine hundred fifty-one million, twenty-six thousand, eight hundred twenty-eight".