28084636656036 has 27 divisors (see below), whose sum is σ = 70991800811841. Its totient is φ = 9361534953024.

The previous prime is 28084636655993. The next prime is 28084636656061. The reversal of 28084636656036 is 63065663648082.

The square root of 28084636656036 is 5299494.

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

28084636656036 is a `hidden beast` number, since 2 + 8 + 0 + 8 + 4 + 6 + 3 + 66 + 560 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7135341494436 + 20949295161600 = 2671206^2 + 4577040^2 .

It is a super-2 number, since 2×28084636656036² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31355340 + ... + 32238588.

Almost surely, 2^{28084636656036} is an apocalyptic number.

28084636656036 is the 5299494-th square number.

It is an amenable number.

28084636656036 is an abundant number, since it is smaller than the sum of its proper divisors (42907164155805).

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

28084636656036 is an frugal number, since it uses more digits than its factorization.

28084636656036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766508 (or 883254 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 63.

The spelling of 28084636656036 in words is "twenty-eight trillion, eighty-four billion, six hundred thirty-six million, six hundred fifty-six thousand, thirty-six".