28713663000 has 1024 divisors, whose sum is σ = 118394265600. Its totient is φ = 6412032000.

The previous prime is 28713662917. The next prime is 28713663053. The reversal of 28713663000 is 36631782.

It is a happy number.

28713663000 is a `hidden beast` number, since 2 + 8 + 7 + 13 + 6 + 630 + 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 255 ways as a sum of consecutive naturals, for example, 610928977 + ... + 610929023.

It is an arithmetic number, because the mean of its divisors is an integer number (115619400).

Almost surely, 2^28713663000 is an apocalyptic number.

28713663000 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 28713663000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59197132800).

28713663000 is an abundant number, since it is smaller than the sum of its proper divisors (89680602600).

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

28713663000 is a wasteful number, since it uses less digits than its factorization.

28713663000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 28713663000 in words is "twenty-eight billion, seven hundred thirteen million, six hundred sixty-three thousand".