12126444494 has 16 divisors (see below), whose sum is σ = 18451853232. Its totient is φ = 5975944128.

The previous prime is 12126444487. The next prime is 12126444497. The reversal of 12126444494 is 49444462121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126444497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183557 + ... + 240719.

It is an arithmetic number, because the mean of its divisors is an integer number (1153240827).

Almost surely, 2^12126444494 is an apocalyptic number.

12126444494 is a deficient number, since it is larger than the sum of its proper divisors (6325408738).

12126444494 is a wasteful number, since it uses less digits than its factorization.

12126444494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58691.

The product of its digits is 221184, while the sum is 41.

The spelling of 12126444494 in words is "twelve billion, one hundred twenty-six million, four hundred forty-four thousand, four hundred ninety-four".