12674533547621 has 16 divisors (see below), whose sum is σ = 14273214156288. Its totient is φ = 11150283489600.

The previous prime is 12674533547573. The next prime is 12674533547699.

It is a happy number.

12674533547621 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12674533547621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12674533547021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11266115 + ... + 12339951.

It is an arithmetic number, because the mean of its divisors is an integer number (892075884768).

Almost surely, 2^{12674533547621} is an apocalyptic number.

12674533547621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12674533547621 is a deficient number, since it is larger than the sum of its proper divisors (1598680608667).

12674533547621 is a wasteful number, since it uses less digits than its factorization.

12674533547621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108492.

The product of its digits is 25401600, while the sum is 56.

The spelling of 12674533547621 in words is "twelve trillion, six hundred seventy-four billion, five hundred thirty-three million, five hundred forty-seven thousand, six hundred twenty-one".