12134678788 has 6 divisors (see below), whose sum is σ = 21235687886. Its totient is φ = 6067339392.

The previous prime is 12134678741. The next prime is 12134678789. The reversal of 12134678788 is 88787643121.

It can be written as a sum of positive squares in only one way, i.e., 11560980484 + 573698304 = 107522^2 + 23952^2 .

It is not an unprimeable number, because it can be changed into a prime (12134678789) by changing a digit.

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 as a sum of consecutive naturals, namely, 1516834845 + ... + 1516834852.

Almost surely, 2^12134678788 is an apocalyptic number.

It is an amenable number.

12134678788 is a deficient number, since it is larger than the sum of its proper divisors (9101009098).

12134678788 is a wasteful number, since it uses less digits than its factorization.

12134678788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033669701 (or 3033669699 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The spelling of 12134678788 in words is "twelve billion, one hundred thirty-four million, six hundred seventy-eight thousand, seven hundred eighty-eight".