28791058296 has 512 divisors, whose sum is σ = 101423185920. Its totient is φ = 6569164800.

The previous prime is 28791058259. The next prime is 28791058337. The reversal of 28791058296 is 69285019782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 49897560 + ... + 49898136.

It is an arithmetic number, because the mean of its divisors is an integer number (198092160).

Almost surely, 2^28791058296 is an apocalyptic number.

28791058296 is a gapful number since it is divisible by the number (26) 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 28791058296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50711592960).

28791058296 is an abundant number, since it is smaller than the sum of its proper divisors (72632127624).

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

28791058296 is a wasteful number, since it uses less digits than its factorization.

28791058296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 28791058296 in words is "twenty-eight billion, seven hundred ninety-one million, fifty-eight thousand, two hundred ninety-six".