12641263748 has 24 divisors (see below), whose sum is σ = 22352453760. Its totient is φ = 6254933760.

The previous prime is 12641263729. The next prime is 12641263751. The reversal of 12641263748 is 84736214621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12641263699 and 12641263708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632468 + ... + 652148.

It is an arithmetic number, because the mean of its divisors is an integer number (931352240).

Almost surely, 2^12641263748 is an apocalyptic number.

It is an amenable number.

12641263748 is a deficient number, since it is larger than the sum of its proper divisors (9711190012).

12641263748 is a wasteful number, since it uses less digits than its factorization.

12641263748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21347 (or 21345 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The spelling of 12641263748 in words is "twelve billion, six hundred forty-one million, two hundred sixty-three thousand, seven hundred forty-eight".