28470113280 has 792 divisors, whose sum is σ = 119259006048. Its totient is φ = 6493519872.

The previous prime is 28470113213. The next prime is 28470113293. The reversal of 28470113280 is 8231107482.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 60963607 + ... + 60964073.

Almost surely, 2^28470113280 is an apocalyptic number.

28470113280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28470113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59629503024).

28470113280 is an abundant number, since it is smaller than the sum of its proper divisors (90788892768).

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

28470113280 is an equidigital number, since it uses as much as digits as its factorization.

28470113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 28470113280 in words is "twenty-eight billion, four hundred seventy million, one hundred thirteen thousand, two hundred eighty".