28707912000 has 448 divisors, whose sum is σ = 108981849600. Its totient is φ = 7389849600.

The previous prime is 28707911993. The next prime is 28707912031. The reversal of 28707912000 is 21970782.

It is a super-2 number, since 2×28707912000² (a number of 22 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 6261709 + ... + 6266291.

Almost surely, 2^28707912000 is an apocalyptic number.

28707912000 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 28707912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54490924800).

28707912000 is an abundant number, since it is smaller than the sum of its proper divisors (80273937600).

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

28707912000 is a wasteful number, since it uses less digits than its factorization.

28707912000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4648 (or 4622 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 28707912000 in words is "twenty-eight billion, seven hundred seven million, nine hundred twelve thousand".