12846543776642 has 4 divisors (see below), whose sum is σ = 19269815664966. Its totient is φ = 6423271888320.

The previous prime is 12846543776587. The next prime is 12846543776699. The reversal of 12846543776642 is 24667734564821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10432376746561 + 2414167030081 = 3229919^2 + 1553759^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211635944159 + ... + 3211635944162.

Almost surely, 2^{12846543776642} is an apocalyptic number.

12846543776642 is a deficient number, since it is larger than the sum of its proper divisors (6423271888324).

12846543776642 is an equidigital number, since it uses as much as digits as its factorization.

12846543776642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423271888323.

The product of its digits is 325140480, while the sum is 65.

The spelling of 12846543776642 in words is "twelve trillion, eight hundred forty-six billion, five hundred forty-three million, seven hundred seventy-six thousand, six hundred forty-two".