1425265344443 has 4 divisors (see below), whose sum is σ = 1500279309960. Its totient is φ = 1350251378928.

The previous prime is 1425265344439. The next prime is 1425265344469. The reversal of 1425265344443 is 3444435625241.

It is a happy number.

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 1425265344443 - 2² = 1425265344439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425265344343) 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, 37506982730 + ... + 37506982767.

It is an arithmetic number, because the mean of its divisors is an integer number (375069827490).

Almost surely, 2^{1425265344443} is an apocalyptic number.

1425265344443 is a deficient number, since it is larger than the sum of its proper divisors (75013965517).

1425265344443 is an equidigital number, since it uses as much as digits as its factorization.

1425265344443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75013965516.

The product of its digits is 5529600, while the sum is 47.

The spelling of 1425265344443 in words is "one trillion, four hundred twenty-five billion, two hundred sixty-five million, three hundred forty-four thousand, four hundred forty-three".