28568041578 has 64 divisors (see below), whose sum is σ = 69536880000. Its totient is φ = 8653462272.

The previous prime is 28568041577. The next prime is 28568041583. The reversal of 28568041578 is 87514086582.

28568041578 is a `hidden beast` number, since 2 + 8 + 5 + 68 + 0 + 4 + 1 + 578 = 666.

It is a super-2 number, since 2×28568041578² (a number of 22 digits) contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28568041571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509928 + ... + 563171.

It is an arithmetic number, because the mean of its divisors is an integer number (1086513750).

Almost surely, 2^28568041578 is an apocalyptic number.

28568041578 is an abundant number, since it is smaller than the sum of its proper divisors (40968838422).

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

28568041578 is a wasteful number, since it uses less digits than its factorization.

28568041578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073156 (or 1073150 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 28568041578 in words is "twenty-eight billion, five hundred sixty-eight million, forty-one thousand, five hundred seventy-eight".