138012560012 has 12 divisors (see below), whose sum is σ = 254233663320. Its totient is φ = 65374370496.

The previous prime is 138012559999. The next prime is 138012560027. The reversal of 138012560012 is 210065210831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907977293 + ... + 907977444.

It is an arithmetic number, because the mean of its divisors is an integer number (21186138610).

Almost surely, 2^138012560012 is an apocalyptic number.

It is an amenable number.

138012560012 is a deficient number, since it is larger than the sum of its proper divisors (116221103308).

138012560012 is a wasteful number, since it uses less digits than its factorization.

138012560012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815954760 (or 1815954758 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 138012560012 its reverse (210065210831), we get a palindrome (348077770843).

The spelling of 138012560012 in words is "one hundred thirty-eight billion, twelve million, five hundred sixty thousand, twelve".