28536759806804 has 12 divisors (see below), whose sum is σ = 52876937289204. Its totient is φ = 13429063438464.

The previous prime is 28536759806783. The next prime is 28536759806809. The reversal of 28536759806804 is 40860895763582.

It can be written as a sum of positive squares in 2 ways, for example, as 8768527768900 + 19768232037904 = 2961170^2 + 4446148^2 .

It is a super-3 number, since 3×28536759806804³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28536759806809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209829116159 + ... + 209829116294.

It is an arithmetic number, because the mean of its divisors is an integer number (4406411440767).

Almost surely, 2^{28536759806804} is an apocalyptic number.

It is an amenable number.

28536759806804 is a deficient number, since it is larger than the sum of its proper divisors (24340177482400).

28536759806804 is a wasteful number, since it uses less digits than its factorization.

28536759806804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419658232474 (or 419658232472 counting only the distinct ones).

The product of its (nonzero) digits is 696729600, while the sum is 71.

The spelling of 28536759806804 in words is "twenty-eight trillion, five hundred thirty-six billion, seven hundred fifty-nine million, eight hundred six thousand, eight hundred four".