28566074736 has 40 divisors (see below), whose sum is σ = 81995215760. Its totient is φ = 9522024768.

The previous prime is 28566074699. The next prime is 28566074741. The reversal of 28566074736 is 63747066582.

28566074736 is a `hidden beast` number, since 2 + 8 + 566 + 0 + 7 + 4 + 73 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33062155 + ... + 33063018.

It is an arithmetic number, because the mean of its divisors is an integer number (2049880394).

Almost surely, 2^28566074736 is an apocalyptic number.

It is an amenable number.

28566074736 is an abundant number, since it is smaller than the sum of its proper divisors (53429141024).

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

28566074736 is a wasteful number, since it uses less digits than its factorization.

28566074736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66125190 (or 66125178 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 28566074736 in words is "twenty-eight billion, five hundred sixty-six million, seventy-four thousand, seven hundred thirty-six".