12431242693578 has 32 divisors (see below), whose sum is σ = 24886629570240. Its totient is φ = 4139724758400.

The previous prime is 12431242693577. The next prime is 12431242693633. The reversal of 12431242693578 is 87539624213421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12431242693577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41370678 + ... + 41670078.

It is an arithmetic number, because the mean of its divisors is an integer number (777707174070).

Almost surely, 2^{12431242693578} is an apocalyptic number.

12431242693578 is an abundant number, since it is smaller than the sum of its proper divisors (12455386876662).

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

12431242693578 is a wasteful number, since it uses less digits than its factorization.

12431242693578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306102.

The product of its digits is 17418240, while the sum is 57.

The spelling of 12431242693578 in words is "twelve trillion, four hundred thirty-one billion, two hundred forty-two million, six hundred ninety-three thousand, five hundred seventy-eight".