28551730004 has 24 divisors (see below), whose sum is σ = 57692160960. Its totient is φ = 12110305536.

The previous prime is 28551729979. The next prime is 28551730043. The reversal of 28551730004 is 40003715582.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5253494 + ... + 5258925.

It is an arithmetic number, because the mean of its divisors is an integer number (2403840040).

Almost surely, 2^28551730004 is an apocalyptic number.

It is an amenable number.

28551730004 is an abundant number, since it is smaller than the sum of its proper divisors (29140430956).

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

28551730004 is a wasteful number, since it uses less digits than its factorization.

28551730004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512527 (or 10512525 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 28551730004 in words is "twenty-eight billion, five hundred fifty-one million, seven hundred thirty thousand, four".