28551685330 has 64 divisors (see below), whose sum is σ = 59875925760. Its totient is φ = 9599788800.

The previous prime is 28551685297. The next prime is 28551685343. The reversal of 28551685330 is 3358615582.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1730520 + ... + 1746940.

It is an arithmetic number, because the mean of its divisors is an integer number (935561340).

Almost surely, 2^28551685330 is an apocalyptic number.

28551685330 is an abundant number, since it is smaller than the sum of its proper divisors (31324240430).

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

28551685330 is a wasteful number, since it uses less digits than its factorization.

28551685330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16915.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 28551685330 in words is "twenty-eight billion, five hundred fifty-one million, six hundred eighty-five thousand, three hundred thirty".