28668575754 has 96 divisors (see below), whose sum is σ = 79281121920. Its totient is φ = 7560931392.

The previous prime is 28668575743. The next prime is 28668575807. The reversal of 28668575754 is 45757586682.

28668575754 is a `hidden beast` number, since 2 + 8 + 6 + 6 + 8 + 57 + 575 + 4 = 666.

28668575754 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 28668575691 and 28668575700.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279889 + ... + 368340.

It is an arithmetic number, because the mean of its divisors is an integer number (825845020).

Almost surely, 2^28668575754 is an apocalyptic number.

28668575754 is an abundant number, since it is smaller than the sum of its proper divisors (50612546166).

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

28668575754 is a wasteful number, since it uses less digits than its factorization.

28668575754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648266 (or 648254 counting only the distinct ones).

The product of its digits is 112896000, while the sum is 63.

The spelling of 28668575754 in words is "twenty-eight billion, six hundred sixty-eight million, five hundred seventy-five thousand, seven hundred fifty-four".