1425656144219 has 4 divisors (see below), whose sum is σ = 1434402501096. Its totient is φ = 1416909787344.

The previous prime is 1425656144191. The next prime is 1425656144243. The reversal of 1425656144219 is 9124416565241.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425656144219 is a prime.

It is a super-2 number, since 2×1425656144219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425656144719) 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, 4373178194 + ... + 4373178519.

It is an arithmetic number, because the mean of its divisors is an integer number (358600625274).

Almost surely, 2^{1425656144219} is an apocalyptic number.

1425656144219 is a deficient number, since it is larger than the sum of its proper divisors (8746356877).

1425656144219 is an equidigital number, since it uses as much as digits as its factorization.

1425656144219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8746356876.

The product of its digits is 2073600, while the sum is 50.

The spelling of 1425656144219 in words is "one trillion, four hundred twenty-five billion, six hundred fifty-six million, one hundred forty-four thousand, two hundred nineteen".