12438027412 has 6 divisors (see below), whose sum is σ = 21766547978. Its totient is φ = 6219013704.

The previous prime is 12438027391. The next prime is 12438027431. The reversal of 12438027412 is 21472083421.

It can be written as a sum of positive squares in only one way, i.e., 9897464196 + 2540563216 = 99486^2 + 50404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1554753423 + ... + 1554753430.

Almost surely, 2^12438027412 is an apocalyptic number.

It is an amenable number.

12438027412 is a deficient number, since it is larger than the sum of its proper divisors (9328520566).

12438027412 is a wasteful number, since it uses less digits than its factorization.

12438027412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109506857 (or 3109506855 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 12438027412 in words is "twelve billion, four hundred thirty-eight million, twenty-seven thousand, four hundred twelve".