12289563750 has 40 divisors (see below), whose sum is σ = 30714087096. Its totient is φ = 3277216000.

The previous prime is 12289563731. The next prime is 12289563751. The reversal of 12289563750 is 5736598221.

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 12289563750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12289563751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1634859 + ... + 1642358.

Almost surely, 2^12289563750 is an apocalyptic number.

12289563750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12289563750 is an abundant number, since it is smaller than the sum of its proper divisors (18424523346).

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

12289563750 is an equidigital number, since it uses as much as digits as its factorization.

12289563750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277242 (or 3277227 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 12289563750 in words is "twelve billion, two hundred eighty-nine million, five hundred sixty-three thousand, seven hundred fifty".