28331533435636 has 24 divisors (see below), whose sum is σ = 50095755579240. Its totient is φ = 14018598672000.

The previous prime is 28331533435633. The next prime is 28331533435643. The reversal of 28331533435636 is 63653433513382.

It can be written as a sum of positive squares in 4 ways, for example, as 14804364350736 + 13527169084900 = 3847644^2 + 3677930^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28331533435631) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16461595 + ... + 18101026.

It is an arithmetic number, because the mean of its divisors is an integer number (2087323149135).

Almost surely, 2^{28331533435636} is an apocalyptic number.

It is an amenable number.

28331533435636 is a deficient number, since it is larger than the sum of its proper divisors (21764222143604).

28331533435636 is a wasteful number, since it uses less digits than its factorization.

28331533435636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34564755 (or 34564753 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 55.

The spelling of 28331533435636 in words is "twenty-eight trillion, three hundred thirty-one billion, five hundred thirty-three million, four hundred thirty-five thousand, six hundred thirty-six".