28813796352 has 132 divisors (see below), whose sum is σ = 90763095696. Its totient is φ = 8731422720.

The previous prime is 28813796351. The next prime is 28813796441. The reversal of 28813796352 is 25369731882.

28813796352 is a `hidden beast` number, since 288 + 1 + 3 + 7 + 9 + 6 + 352 = 666.

It is a tau number, because it is divible by the number of its divisors (132).

It is not an unprimeable number, because it can be changed into a prime (28813796351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40738 + ... + 243489.

Almost surely, 2^28813796352 is an apocalyptic number.

28813796352 is a gapful number since it is divisible by the number (22) 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 28813796352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45381547848).

28813796352 is an abundant number, since it is smaller than the sum of its proper divisors (61949299344).

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

28813796352 is a wasteful number, since it uses less digits than its factorization.

28813796352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284264 (or 284243 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 28813796352 in words is "twenty-eight billion, eight hundred thirteen million, seven hundred ninety-six thousand, three hundred fifty-two".