425118228529 has 4 divisors (see below), whose sum is σ = 431463276784. Its totient is φ = 418773180276.

The previous prime is 425118228481. The next prime is 425118228541. The reversal of 425118228529 is 925822811524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425118228529 - 2⁷ = 425118228401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425118228329) 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 3 ways as a sum of consecutive naturals, for example, 3172524027 + ... + 3172524160.

It is an arithmetic number, because the mean of its divisors is an integer number (107865819196).

Almost surely, 2^425118228529 is an apocalyptic number.

It is an amenable number.

425118228529 is a deficient number, since it is larger than the sum of its proper divisors (6345048255).

425118228529 is an equidigital number, since it uses as much as digits as its factorization.

425118228529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345048254.

The product of its digits is 921600, while the sum is 49.

The spelling of 425118228529 in words is "four hundred twenty-five billion, one hundred eighteen million, two hundred twenty-eight thousand, five hundred twenty-nine".