12645284074403 has 4 divisors (see below), whose sum is σ = 12645570658248. Its totient is φ = 12644997490560.

The previous prime is 12645284074393. The next prime is 12645284074453. The reversal of 12645284074403 is 30447048254621.

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

It is a cyclic number.

It is not a de Polignac number, because 12645284074403 - 2⁸ = 12645284074147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12645284074453) 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, 143225726 + ... + 143313987.

It is an arithmetic number, because the mean of its divisors is an integer number (3161392664562).

Almost surely, 2^{12645284074403} is an apocalyptic number.

12645284074403 is a deficient number, since it is larger than the sum of its proper divisors (286583845).

12645284074403 is an equidigital number, since it uses as much as digits as its factorization.

12645284074403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286583844.

The product of its (nonzero) digits is 5160960, while the sum is 50.

The spelling of 12645284074403 in words is "twelve trillion, six hundred forty-five billion, two hundred eighty-four million, seventy-four thousand, four hundred three".