28645704000 has 224 divisors, whose sum is σ = 105098697600. Its totient is φ = 7638796800.

The previous prime is 28645703981. The next prime is 28645704011. The reversal of 28645704000 is 40754682.

28645704000 is a `hidden beast` number, since 2 + 8 + 645 + 7 + 0 + 4 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 149691 + ... + 282309.

Almost surely, 2^28645704000 is an apocalyptic number.

28645704000 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 28645704000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52549348800).

28645704000 is an abundant number, since it is smaller than the sum of its proper divisors (76452993600).

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

28645704000 is a wasteful number, since it uses less digits than its factorization.

28645704000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132655 (or 132629 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 28645704000 in words is "twenty-eight billion, six hundred forty-five million, seven hundred four thousand".