28313446756 has 135 divisors (see below), whose sum is σ = 62017352747. Its totient is φ = 11307475200.

The previous prime is 28313446753. The next prime is 28313446831. The reversal of 28313446756 is 65764431382.

The square root of 28313446756 is 168266.

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

It can be written as a sum of positive squares in 4 ways, for example, as 16861022500 + 11452424256 = 129850^2 + 107016^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (28313446753) by changing a digit.

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 44 ways as a sum of consecutive naturals, for example, 280331106 + ... + 280331206.

Almost surely, 2^28313446756 is an apocalyptic number.

28313446756 is the 168266-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28313446756

28313446756 is an abundant number, since it is smaller than the sum of its proper divisors (33703905991).

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

28313446756 is an equidigital number, since it uses as much as digits as its factorization.

28313446756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 127 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 49.

Multiplying 28313446756 by its sum of digits (49), we get a square (1387358891044 = 1177862²).

28313446756 divided by its sum of digits (49) gives a square (577825444 = 24038²).

The spelling of 28313446756 in words is "twenty-eight billion, three hundred thirteen million, four hundred forty-six thousand, seven hundred fifty-six".