28797050880 has 448 divisors, whose sum is σ = 110313947520. Its totient is φ = 7084965888.

The previous prime is 28797050857. The next prime is 28797050911. The reversal of 28797050880 is 8805079782.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14375959 + ... + 14377961.

It is an arithmetic number, because the mean of its divisors is an integer number (246236490).

Almost surely, 2^28797050880 is an apocalyptic number.

28797050880 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 28797050880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55156973760).

28797050880 is an abundant number, since it is smaller than the sum of its proper divisors (81516896640).

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

28797050880 is a wasteful number, since it uses less digits than its factorization.

28797050880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 28797050880 in words is "twenty-eight billion, seven hundred ninety-seven million, fifty thousand, eight hundred eighty".