28821570700 has 36 divisors (see below), whose sum is σ = 67353796720. Its totient is φ = 10641810240.

The previous prime is 28821570683. The next prime is 28821570707. The reversal of 28821570700 is 707512882.

It is not an unprimeable number, because it can be changed into a prime (28821570707) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11083920 + ... + 11086519.

Almost surely, 2^28821570700 is an apocalyptic number.

28821570700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28821570700 is an abundant number, since it is smaller than the sum of its proper divisors (38532226020).

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

28821570700 is a wasteful number, since it uses less digits than its factorization.

28821570700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22170466 (or 22170459 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The spelling of 28821570700 in words is "twenty-eight billion, eight hundred twenty-one million, five hundred seventy thousand, seven hundred".