28443152768330 has 16 divisors (see below), whose sum is σ = 51198177578184. Its totient is φ = 11377149419520.

The previous prime is 28443152768323. The next prime is 28443152768353. The reversal of 28443152768330 is 3386725134482.

It can be written as a sum of positive squares in 4 ways, for example, as 23418601882729 + 5024550885601 = 4839277^2 + 2241551^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12887447 + ... + 14932266.

Almost surely, 2^{28443152768330} is an apocalyptic number.

28443152768330 is a deficient number, since it is larger than the sum of its proper divisors (22755024809854).

28443152768330 is a wasteful number, since it uses less digits than its factorization.

28443152768330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27921961.

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 28443152768330 in words is "twenty-eight trillion, four hundred forty-three billion, one hundred fifty-two million, seven hundred sixty-eight thousand, three hundred thirty".