1272194444425 has 6 divisors (see below), whose sum is σ = 1577521111118. Its totient is φ = 1017755555520.

The previous prime is 1272194444401. The next prime is 1272194444429. The reversal of 1272194444425 is 5244444912721.

It can be written as a sum of positive squares in 3 ways, for example, as 354148770816 + 918045673609 = 595104^2 + 958147^2 .

It is not a de Polignac number, because 1272194444425 - 2⁵ = 1272194444393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272194444429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25443888864 + ... + 25443888913.

Almost surely, 2^{1272194444425} is an apocalyptic number.

It is an amenable number.

1272194444425 is a deficient number, since it is larger than the sum of its proper divisors (305326666693).

1272194444425 is an equidigital number, since it uses as much as digits as its factorization.

1272194444425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50887777787 (or 50887777782 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 49.

The spelling of 1272194444425 in words is "one trillion, two hundred seventy-two billion, one hundred ninety-four million, four hundred forty-four thousand, four hundred twenty-five".