12897341794 has 4 divisors (see below), whose sum is σ = 19346012694. Its totient is φ = 6448670896.

The previous prime is 12897341791. The next prime is 12897341819. The reversal of 12897341794 is 49714379821.

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., 12851169769 + 46172025 = 113363^2 + 6795^2 .

It is not an unprimeable number, because it can be changed into a prime (12897341791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224335447 + ... + 3224335450.

Almost surely, 2^12897341794 is an apocalyptic number.

12897341794 is a deficient number, since it is larger than the sum of its proper divisors (6448670900).

12897341794 is an equidigital number, since it uses as much as digits as its factorization.

12897341794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448670899.

The product of its digits is 3048192, while the sum is 55.

The spelling of 12897341794 in words is "twelve billion, eight hundred ninety-seven million, three hundred forty-one thousand, seven hundred ninety-four".