12427427238492 has 96 divisors (see below), whose sum is σ = 35265534796800. Its totient is φ = 3325035985920.

The previous prime is 12427427238491. The next prime is 12427427238511. The reversal of 12427427238492 is 29483272472421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427427238491) 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 31 ways as a sum of consecutive naturals, for example, 21581859 + ... + 22150202.

It is an arithmetic number, because the mean of its divisors is an integer number (367349320800).

Almost surely, 2^{12427427238492} is an apocalyptic number.

12427427238492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12427427238492 is an abundant number, since it is smaller than the sum of its proper divisors (22838107558308).

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

12427427238492 is a wasteful number, since it uses less digits than its factorization.

12427427238492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43732291 (or 43732289 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 57.

The spelling of 12427427238492 in words is "twelve trillion, four hundred twenty-seven billion, four hundred twenty-seven million, two hundred thirty-eight thousand, four hundred ninety-two".