1425544193443 has 2 divisors, whose sum is σ = 1425544193444. Its totient is φ = 1425544193442.

The previous prime is 1425544193387. The next prime is 1425544193561. The reversal of 1425544193443 is 3443914455241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425544193443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1425544190443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712772096721 + 712772096722.

It is an arithmetic number, because the mean of its divisors is an integer number (712772096722).

Almost surely, 2^{1425544193443} is an apocalyptic number.

1425544193443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425544193443 is an equidigital number, since it uses as much as digits as its factorization.

1425544193443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4147200, while the sum is 49.

The spelling of 1425544193443 in words is "one trillion, four hundred twenty-five billion, five hundred forty-four million, one hundred ninety-three thousand, four hundred forty-three".