12138109964 has 12 divisors (see below), whose sum is σ = 21974164800. Its totient is φ = 5859777168.

The previous prime is 12138109957. The next prime is 12138110009. The reversal of 12138109964 is 46990183121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52319324 + ... + 52319555.

It is an arithmetic number, because the mean of its divisors is an integer number (1831180400).

Almost surely, 2^12138109964 is an apocalyptic number.

It is an amenable number.

12138109964 is a deficient number, since it is larger than the sum of its proper divisors (9836054836).

12138109964 is a wasteful number, since it uses less digits than its factorization.

12138109964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104638912 (or 104638910 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 12138109964 in words is "twelve billion, one hundred thirty-eight million, one hundred nine thousand, nine hundred sixty-four".