12547842746 has 8 divisors (see below), whose sum is σ = 18838527744. Its totient is φ = 6268333500.

The previous prime is 12547842721. The next prime is 12547842773. The reversal of 12547842746 is 64724874521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12547842694 and 12547842703.

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, 2791130 + ... + 2795621.

It is an arithmetic number, because the mean of its divisors is an integer number (2354815968).

Almost surely, 2^12547842746 is an apocalyptic number.

12547842746 is a deficient number, since it is larger than the sum of its proper divisors (6290684998).

12547842746 is a wasteful number, since it uses less digits than its factorization.

12547842746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587876.

The product of its digits is 3010560, while the sum is 50.

The spelling of 12547842746 in words is "twelve billion, five hundred forty-seven million, eight hundred forty-two thousand, seven hundred forty-six".