12547304705644 has 12 divisors (see below), whose sum is σ = 22038808267168. Its totient is φ = 6250502343600.

The previous prime is 12547304705539. The next prime is 12547304705651. The reversal of 12547304705644 is 44650740374521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12547304705591 and 12547304705600.

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, 5787501087 + ... + 5787503254.

Almost surely, 2^{12547304705644} is an apocalyptic number.

It is an amenable number.

12547304705644 is a deficient number, since it is larger than the sum of its proper divisors (9491503561524).

12547304705644 is a wasteful number, since it uses less digits than its factorization.

12547304705644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11575004616 (or 11575004614 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 52.

The spelling of 12547304705644 in words is "twelve trillion, five hundred forty-seven billion, three hundred four million, seven hundred five thousand, six hundred forty-four".