28403983596450 has 384 divisors, whose sum is σ = 88368815462400. Its totient is φ = 5865556838400.

The previous prime is 28403983596389. The next prime is 28403983596491. The reversal of 28403983596450 is 5469538930482.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2168402001 + ... + 2168415099.

It is an arithmetic number, because the mean of its divisors is an integer number (230127123600).

Almost surely, 2^{28403983596450} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28403983596450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44184407731200).

28403983596450 is an abundant number, since it is smaller than the sum of its proper divisors (59964831865950).

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

28403983596450 is a wasteful number, since it uses less digits than its factorization.

28403983596450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282 (or 14277 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 66.

The spelling of 28403983596450 in words is "twenty-eight trillion, four hundred three billion, nine hundred eighty-three million, five hundred ninety-six thousand, four hundred fifty".