28133760000 has 220 divisors, whose sum is σ = 93709809512. Its totient is φ = 7501824000.

The previous prime is 28133759999. The next prime is 28133760001. The reversal of 28133760000 is 6733182.

It is an interprime number because it is at equal distance from previous prime (28133759999) and next prime (28133760001).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 28133760000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28133760001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1912674 + ... + 1927326.

Almost surely, 2^28133760000 is an apocalyptic number.

28133760000 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 28133760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46854904756).

28133760000 is an abundant number, since it is smaller than the sum of its proper divisors (65576049512).

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

28133760000 is an equidigital number, since it uses as much as digits as its factorization.

28133760000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14696 (or 14663 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 28133760000 in words is "twenty-eight billion, one hundred thirty-three million, seven hundred sixty thousand".