12561338367467 has 8 divisors (see below), whose sum is σ = 12759878194896. Its totient is φ = 12363123750912.

The previous prime is 12561338367463. The next prime is 12561338367497. The reversal of 12561338367467 is 76476383316521.

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

It is a cyclic number.

It is not a de Polignac number, because 12561338367467 - 2² = 12561338367463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12561338367463) 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, 81224858 + ... + 81379359.

It is an arithmetic number, because the mean of its divisors is an integer number (1594984774362).

Almost surely, 2^{12561338367467} is an apocalyptic number.

12561338367467 is a deficient number, since it is larger than the sum of its proper divisors (198539827429).

12561338367467 is a wasteful number, since it uses less digits than its factorization.

12561338367467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162605437.

The product of its digits is 91445760, while the sum is 62.

The spelling of 12561338367467 in words is "twelve trillion, five hundred sixty-one billion, three hundred thirty-eight million, three hundred sixty-seven thousand, four hundred sixty-seven".