12897540532404 has 144 divisors (see below), whose sum is σ = 35602978844160. Its totient is φ = 3904278477120.

The previous prime is 12897540532403. The next prime is 12897540532441. The reversal of 12897540532404 is 40423504579821.

It is a happy number.

12897540532404 is a `hidden beast` number, since 1 + 2 + 8 + 9 + 7 + 540 + 53 + 2 + 40 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897540532403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2824070529 + ... + 2824075095.

It is an arithmetic number, because the mean of its divisors is an integer number (247242908640).

Almost surely, 2^{12897540532404} is an apocalyptic number.

It is an amenable number.

12897540532404 is an abundant number, since it is smaller than the sum of its proper divisors (22705438311756).

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

12897540532404 is a wasteful number, since it uses less digits than its factorization.

12897540532404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10450 (or 10445 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 12897540532404 in words is "twelve trillion, eight hundred ninety-seven billion, five hundred forty million, five hundred thirty-two thousand, four hundred four".