12968158438 has 16 divisors (see below), whose sum is σ = 19755275616. Its totient is φ = 6383396160.

The previous prime is 12968158429. The next prime is 12968158439. The reversal of 12968158438 is 83485186921.

It is a happy number.

12968158438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12968158439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106 + ... + 161077.

It is an arithmetic number, because the mean of its divisors is an integer number (1234704726).

Almost surely, 2^12968158438 is an apocalyptic number.

12968158438 is a deficient number, since it is larger than the sum of its proper divisors (6787117178).

12968158438 is a wasteful number, since it uses less digits than its factorization.

12968158438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164799.

The product of its digits is 3317760, while the sum is 55.

The spelling of 12968158438 in words is "twelve billion, nine hundred sixty-eight million, one hundred fifty-eight thousand, four hundred thirty-eight".