28698788800 has 168 divisors, whose sum is σ = 77161735440. Its totient is φ = 10418995200.

The previous prime is 28698788779. The next prime is 28698788809. The reversal of 28698788800 is 888789682.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28698788809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17194366 + ... + 17196034.

Almost surely, 2^28698788800 is an apocalyptic number.

28698788800 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 28698788800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38580867720).

28698788800 is an abundant number, since it is smaller than the sum of its proper divisors (48462946640).

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

28698788800 is a wasteful number, since it uses less digits than its factorization.

28698788800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679 (or 2664 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 64.

The spelling of 28698788800 in words is "twenty-eight billion, six hundred ninety-eight million, seven hundred eighty-eight thousand, eight hundred".