28007441280 has 768 divisors, whose sum is σ = 123502579200. Its totient is φ = 5906276352.

The previous prime is 28007441279. The next prime is 28007441303. The reversal of 28007441280 is 8214470082.

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 95 ways as a sum of consecutive naturals, for example, 14151331 + ... + 14153309.

It is an arithmetic number, because the mean of its divisors is an integer number (160810650).

Almost surely, 2^28007441280 is an apocalyptic number.

28007441280 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 28007441280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61751289600).

28007441280 is an abundant number, since it is smaller than the sum of its proper divisors (95495137920).

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

28007441280 is a wasteful number, since it uses less digits than its factorization.

28007441280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The spelling of 28007441280 in words is "twenty-eight billion, seven million, four hundred forty-one thousand, two hundred eighty".