12524351440 has 40 divisors (see below), whose sum is σ = 29124026568. Its totient is φ = 5008896000.

The previous prime is 12524351417. The next prime is 12524351459. The reversal of 12524351440 is 4415342521.

12524351440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55696 + 12524295744 = 236^2 + 111912^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711384 + ... + 728776.

Almost surely, 2^12524351440 is an apocalyptic number.

12524351440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12524351440 is an abundant number, since it is smaller than the sum of its proper divisors (16599675128).

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

12524351440 is a wasteful number, since it uses less digits than its factorization.

12524351440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26407 (or 26401 counting only the distinct ones).

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

Adding to 12524351440 its reverse (4415342521), we get a palindrome (16939693961).

The spelling of 12524351440 in words is "twelve billion, five hundred twenty-four million, three hundred fifty-one thousand, four hundred forty".