12109963834 has 4 divisors (see below), whose sum is σ = 18164945754. Its totient is φ = 6054981916.

The previous prime is 12109963829. The next prime is 12109963847. The reversal of 12109963834 is 43836990121.

It is a happy number.

12109963834 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11383823025 + 726140809 = 106695^2 + 26947^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027490957 + ... + 3027490960.

Almost surely, 2^12109963834 is an apocalyptic number.

12109963834 is a deficient number, since it is larger than the sum of its proper divisors (6054981920).

12109963834 is an equidigital number, since it uses as much as digits as its factorization.

12109963834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054981919.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 12109963834 in words is "twelve billion, one hundred nine million, nine hundred sixty-three thousand, eight hundred thirty-four".