28551128534028 has 24 divisors (see below), whose sum is σ = 74021444347760. Its totient is φ = 9517042844640.

The previous prime is 28551128534011. The next prime is 28551128534077. The reversal of 28551128534028 is 82043582115582.

28551128534028 is a `hidden beast` number, since 2 + 8 + 5 + 5 + 11 + 285 + 340 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 132181150513 + ... + 132181150728.

Almost surely, 2^{28551128534028} is an apocalyptic number.

It is an amenable number.

28551128534028 is an abundant number, since it is smaller than the sum of its proper divisors (45470315813732).

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

28551128534028 is a wasteful number, since it uses less digits than its factorization.

28551128534028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264362301254 (or 264362301246 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 54.

The spelling of 28551128534028 in words is "twenty-eight trillion, five hundred fifty-one billion, one hundred twenty-eight million, five hundred thirty-four thousand, twenty-eight".