12406427450 has 48 divisors (see below), whose sum is σ = 25093788984. Its totient is φ = 4544409600.

The previous prime is 12406427437. The next prime is 12406427483. The reversal of 12406427450 is 5472460421.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 4246737889 + 8159689561 = 65167^2 + 90331^2 .

It is a super-2 number, since 2×12406427450² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12406427450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165791 + ... + 228690.

Almost surely, 2^12406427450 is an apocalyptic number.

12406427450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12406427450 is an abundant number, since it is smaller than the sum of its proper divisors (12687361534).

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

12406427450 is a wasteful number, since it uses less digits than its factorization.

12406427450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394547 (or 394542 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 12406427450 its reverse (5472460421), we get a palindrome (17878887871).

The spelling of 12406427450 in words is "twelve billion, four hundred six million, four hundred twenty-seven thousand, four hundred fifty".