28366755828 has 24 divisors (see below), whose sum is σ = 67728379488. Its totient is φ = 9235687776.

The previous prime is 28366755799. The next prime is 28366755839. The reversal of 28366755828 is 82855766382.

It is a congruent number.

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, 27486651 + ... + 27487682.

It is an arithmetic number, because the mean of its divisors is an integer number (2822015812).

Almost surely, 2^28366755828 is an apocalyptic number.

It is an amenable number.

28366755828 is an abundant number, since it is smaller than the sum of its proper divisors (39361623660).

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

28366755828 is a wasteful number, since it uses less digits than its factorization.

28366755828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54974383 (or 54974381 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 60.

The spelling of 28366755828 in words is "twenty-eight billion, three hundred sixty-six million, seven hundred fifty-five thousand, eight hundred twenty-eight".