12469422550 has 24 divisors (see below), whose sum is σ = 24977213856. Its totient is φ = 4604094240.

The previous prime is 12469422521. The next prime is 12469422569. The reversal of 12469422550 is 5522496421.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9591214 + ... + 9592513.

It is an arithmetic number, because the mean of its divisors is an integer number (1040717244).

Almost surely, 2^12469422550 is an apocalyptic number.

12469422550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12469422550 is an abundant number, since it is smaller than the sum of its proper divisors (12507791306).

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

12469422550 is a wasteful number, since it uses less digits than its factorization.

12469422550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19183752 (or 19183747 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 12469422550 in words is "twelve billion, four hundred sixty-nine million, four hundred twenty-two thousand, five hundred fifty".