12975943745 has 8 divisors (see below), whose sum is σ = 15572117160. Its totient is φ = 10380098560.

The previous prime is 12975943727. The next prime is 12975943759. The reversal of 12975943745 is 54734957921.

It is a happy number.

It is a Cunningham number, because it is equal to 113912²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 14348944 + 12961594801 = 3788^2 + 113849^2 .

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

It is not a de Polignac number, because 12975943745 - 2⁸ = 12975943489 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15455 + ... + 161835.

It is an arithmetic number, because the mean of its divisors is an integer number (1946514645).

Almost surely, 2^12975943745 is an apocalyptic number.

It is an amenable number.

12975943745 is a deficient number, since it is larger than the sum of its proper divisors (2596173415).

12975943745 is a wasteful number, since it uses less digits than its factorization.

12975943745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164115.

The product of its digits is 9525600, while the sum is 56.

The spelling of 12975943745 in words is "twelve billion, nine hundred seventy-five million, nine hundred forty-three thousand, seven hundred forty-five".