28555853100 has 36 divisors (see below), whose sum is σ = 82621602504. Its totient is φ = 7614894080.

The previous prime is 28555853063. The next prime is 28555853107. The reversal of 28555853100 is 135855582.

It is a super-2 number, since 2×28555853100² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28555853107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47592789 + ... + 47593388.

It is an arithmetic number, because the mean of its divisors is an integer number (2295044514).

Almost surely, 2^28555853100 is an apocalyptic number.

28555853100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28555853100 is an abundant number, since it is smaller than the sum of its proper divisors (54065749404).

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

28555853100 is a wasteful number, since it uses less digits than its factorization.

28555853100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95186194 (or 95186187 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 28555853100 in words is "twenty-eight billion, five hundred fifty-five million, eight hundred fifty-three thousand, one hundred".