28046753280 has 1200 divisors, whose sum is σ = 125849378160. Its totient is φ = 5917556736.

The previous prime is 28046753269. The next prime is 28046753281. The reversal of 28046753280 is 8235764082.

28046753280 is a `hidden beast` number, since 2 + 80 + 467 + 5 + 32 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28046753281) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2157442554 + ... + 2157442566.

Almost surely, 2^28046753280 is an apocalyptic number.

28046753280 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 28046753280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62924689080).

28046753280 is an abundant number, since it is smaller than the sum of its proper divisors (97802624880).

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

28046753280 is an frugal number, since it uses more digits than its factorization.

28046753280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 28046753280 in words is "twenty-eight billion, forty-six million, seven hundred fifty-three thousand, two hundred eighty".