28122996000 has 384 divisors, whose sum is σ = 101019260160. Its totient is φ = 6782976000.

The previous prime is 28122995969. The next prime is 28122996049. The reversal of 28122996000 is 69922182.

It is a self number, because there is not a number n which added to its sum of digits gives 28122996000.

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, 33923586 + ... + 33924414.

It is an arithmetic number, because the mean of its divisors is an integer number (263070990).

Almost surely, 2^28122996000 is an apocalyptic number.

28122996000 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 28122996000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50509630080).

28122996000 is an abundant number, since it is smaller than the sum of its proper divisors (72896264160).

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

28122996000 is a wasteful number, since it uses less digits than its factorization.

28122996000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 28122996000 in words is "twenty-eight billion, one hundred twenty-two million, nine hundred ninety-six thousand".