12109354676 has 12 divisors (see below), whose sum is σ = 21409839108. Its totient is φ = 5992257792.

The previous prime is 12109354667. The next prime is 12109354769. The reversal of 12109354676 is 67645390121.

It can be written as a sum of positive squares in 2 ways, for example, as 8322183076 + 3787171600 = 91226^2 + 61540^2 .

It is a congruent number.

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, 15604451 + ... + 15605226.

It is an arithmetic number, because the mean of its divisors is an integer number (1784153259).

Almost surely, 2^12109354676 is an apocalyptic number.

It is an amenable number.

12109354676 is a deficient number, since it is larger than the sum of its proper divisors (9300484432).

12109354676 is a wasteful number, since it uses less digits than its factorization.

12109354676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31209778 (or 31209776 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 12109354676 in words is "twelve billion, one hundred nine million, three hundred fifty-four thousand, six hundred seventy-six".