12600381644349 has 4 divisors (see below), whose sum is σ = 16800508859136. Its totient is φ = 8400254429564.

The previous prime is 12600381644317. The next prime is 12600381644353. The reversal of 12600381644349 is 94344618300621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12600381644349 - 2⁵ = 12600381644317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12600381644399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100063607389 + ... + 2100063607394.

It is an arithmetic number, because the mean of its divisors is an integer number (4200127214784).

Almost surely, 2^{12600381644349} is an apocalyptic number.

It is an amenable number.

12600381644349 is a deficient number, since it is larger than the sum of its proper divisors (4200127214787).

12600381644349 is an equidigital number, since it uses as much as digits as its factorization.

12600381644349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200127214786.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 12600381644349 in words is "twelve trillion, six hundred billion, three hundred eighty-one million, six hundred forty-four thousand, three hundred forty-nine".