12455031424 has 96 divisors (see below), whose sum is σ = 27334811700. Its totient is φ = 5648670720.

The previous prime is 12455031403. The next prime is 12455031431. The reversal of 12455031424 is 42413055421.

It can be written as a sum of positive squares in 2 ways, for example, as 12313897024 + 141134400 = 110968^2 + 11880^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12343432 + ... + 12344440.

Almost surely, 2^12455031424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455031424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13667405850).

12455031424 is an abundant number, since it is smaller than the sum of its proper divisors (14879780276).

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

12455031424 is a wasteful number, since it uses less digits than its factorization.

12455031424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 12455031424 its reverse (42413055421), we get a palindrome (54868086845).

The spelling of 12455031424 in words is "twelve billion, four hundred fifty-five million, thirty-one thousand, four hundred twenty-four".