28825108685604 has 243 divisors, whose sum is σ = 93173468825073. Its totient is φ = 7486396948800.

The previous prime is 28825108685561. The next prime is 28825108685623. The reversal of 28825108685604 is 40658680152882.

The square root of 28825108685604 is 5368902.

It is a perfect power (a square), and thus also a powerful number.

28825108685604 is a `hidden beast` number, since 2 + 8 + 8 + 2 + 5 + 1 + 0 + 8 + 68 + 560 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2146230860004 + 26678877825600 = 1465002^2 + 5165160^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2480426914 + ... + 2480438534.

Almost surely, 2^{28825108685604} is an apocalyptic number.

28825108685604 is the 5368902-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28825108685604

28825108685604 is an abundant number, since it is smaller than the sum of its proper divisors (64348360139469).

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

28825108685604 is a wasteful number, since it uses less digits than its factorization.

28825108685604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23288 (or 11644 counting only the distinct ones).

The product of its (nonzero) digits is 58982400, while the sum is 63.

The spelling of 28825108685604 in words is "twenty-eight trillion, eight hundred twenty-five billion, one hundred eight million, six hundred eighty-five thousand, six hundred four".