12768285450 has 24 divisors (see below), whose sum is σ = 31665348288. Its totient is φ = 3404876080.

The previous prime is 12768285427. The next prime is 12768285457. The reversal of 12768285450 is 5458286721.

It is a super-2 number, since 2×12768285450² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12768285450.

It is not an unprimeable number, because it can be changed into a prime (12768285457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42560802 + ... + 42561101.

It is an arithmetic number, because the mean of its divisors is an integer number (1319389512).

Almost surely, 2^12768285450 is an apocalyptic number.

12768285450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12768285450 is an abundant number, since it is smaller than the sum of its proper divisors (18897062838).

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

12768285450 is a wasteful number, since it uses less digits than its factorization.

12768285450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85121918 (or 85121913 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 12768285450 in words is "twelve billion, seven hundred sixty-eight million, two hundred eighty-five thousand, four hundred fifty".