12726901470145 has 4 divisors (see below), whose sum is σ = 15272281764180. Its totient is φ = 10181521176112.

The previous prime is 12726901470137. The next prime is 12726901470149. The reversal of 12726901470145 is 54107410962721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4518859829121 + 8208041641024 = 2125761^2 + 2864968^2 .

It is a cyclic number.

It is not a de Polignac number, because 12726901470145 - 2³ = 12726901470137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12726901470149) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1272690147010 + ... + 1272690147019.

It is an arithmetic number, because the mean of its divisors is an integer number (3818070441045).

Almost surely, 2^{12726901470145} is an apocalyptic number.

It is an amenable number.

12726901470145 is a deficient number, since it is larger than the sum of its proper divisors (2545380294035).

12726901470145 is an equidigital number, since it uses as much as digits as its factorization.

12726901470145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545380294034.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 12726901470145 in words is "twelve trillion, seven hundred twenty-six billion, nine hundred one million, four hundred seventy thousand, one hundred forty-five".