28888574600 has 24 divisors (see below), whose sum is σ = 67165936410. Its totient is φ = 11555429760.

The previous prime is 28888574579. The next prime is 28888574633. The reversal of 28888574600 is 647588882.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12374782564 + 16513792036 = 111242^2 + 128506^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72221237 + ... + 72221636.

Almost surely, 2^28888574600 is an apocalyptic number.

28888574600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28888574600 is an abundant number, since it is smaller than the sum of its proper divisors (38277361810).

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

28888574600 is a wasteful number, since it uses less digits than its factorization.

28888574600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144442889 (or 144442880 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 28888574600 in words is "twenty-eight billion, eight hundred eighty-eight million, five hundred seventy-four thousand, six hundred".