28803754836 has 36 divisors (see below), whose sum is σ = 72820584564. Its totient is φ = 9599788800.

The previous prime is 28803754799. The next prime is 28803754871. The reversal of 28803754836 is 63845730882.

It can be written as a sum of positive squares in 2 ways, for example, as 8839760400 + 19963994436 = 94020^2 + 141294^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 193126 + ... + 308066.

Almost surely, 2^28803754836 is an apocalyptic number.

It is an amenable number.

28803754836 is an abundant number, since it is smaller than the sum of its proper divisors (44016829728).

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

28803754836 is a wasteful number, since it uses less digits than its factorization.

28803754836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121912 (or 121907 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 28803754836 in words is "twenty-eight billion, eight hundred three million, seven hundred fifty-four thousand, eight hundred thirty-six".