28231504350 has 288 divisors, whose sum is σ = 88700572800. Its totient is φ = 5901638400.

The previous prime is 28231504313. The next prime is 28231504351. The reversal of 28231504350 is 5340513282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28231504351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4046365 + ... + 4053335.

It is an arithmetic number, because the mean of its divisors is an integer number (307988100).

Almost surely, 2^28231504350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28231504350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44350286400).

28231504350 is an abundant number, since it is smaller than the sum of its proper divisors (60469068450).

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

28231504350 is a wasteful number, since it uses less digits than its factorization.

28231504350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048 (or 7036 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 28231504350 in words is "twenty-eight billion, two hundred thirty-one million, five hundred four thousand, three hundred fifty".