28782050000 has 240 divisors, whose sum is σ = 77870890944. Its totient is φ = 10214400000.

The previous prime is 28782049997. The next prime is 28782050009. The reversal of 28782050000 is 5028782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28782050009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23649392 + ... + 23650608.

Almost surely, 2^28782050000 is an apocalyptic number.

28782050000 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 28782050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38935445472).

28782050000 is an abundant number, since it is smaller than the sum of its proper divisors (49088840944).

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

28782050000 is a wasteful number, since it uses less digits than its factorization.

28782050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

Adding to 28782050000 its reverse (5028782), we get a palindrome (28787078782).

The spelling of 28782050000 in words is "twenty-eight billion, seven hundred eighty-two million, fifty thousand".