28288212180900 has 72 divisors (see below), whose sum is σ = 93539688285120. Its totient is φ = 6465877069440.

The previous prime is 28288212180889. The next prime is 28288212180913. The reversal of 28288212180900 is 908121288282.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6735286515 + ... + 6735290714.

Almost surely, 2^{28288212180900} is an apocalyptic number.

28288212180900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28288212180900 is an abundant number, since it is smaller than the sum of its proper divisors (65251476104220).

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

28288212180900 is a wasteful number, since it uses less digits than its factorization.

28288212180900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13470577253 (or 13470577246 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 51.

The spelling of 28288212180900 in words is "twenty-eight trillion, two hundred eighty-eight billion, two hundred twelve million, one hundred eighty thousand, nine hundred".