28470103900 has 72 divisors (see below), whose sum is σ = 71456676480. Its totient is φ = 9643554240.

The previous prime is 28470103891. The next prime is 28470103931. The reversal of 28470103900 is 930107482.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 186910 + ... + 303109.

It is an arithmetic number, because the mean of its divisors is an integer number (992453840).

Almost surely, 2^28470103900 is an apocalyptic number.

28470103900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28470103900 is an abundant number, since it is smaller than the sum of its proper divisors (42986572580).

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

28470103900 is a wasteful number, since it uses less digits than its factorization.

28470103900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490123 (or 490116 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 28470103900 in words is "twenty-eight billion, four hundred seventy million, one hundred three thousand, nine hundred".