28794894336 has 384 divisors, whose sum is σ = 94195483200. Its totient is φ = 8635023360.

The previous prime is 28794894283. The next prime is 28794894341. The reversal of 28794894336 is 63349849782.

28794894336 is a `hidden beast` number, since 2 + 87 + 9 + 489 + 43 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 29472280 + ... + 29473256.

Almost surely, 2^28794894336 is an apocalyptic number.

28794894336 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 28794894336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47097741600).

28794894336 is an abundant number, since it is smaller than the sum of its proper divisors (65400588864).

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

28794894336 is a wasteful number, since it uses less digits than its factorization.

28794894336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1036 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 28794894336 in words is "twenty-eight billion, seven hundred ninety-four million, eight hundred ninety-four thousand, three hundred thirty-six".