425722325817 has 4 divisors (see below), whose sum is σ = 567629767760. Its totient is φ = 283814883876.

The previous prime is 425722325813. The next prime is 425722325827. The reversal of 425722325817 is 718523227524.

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 not a de Polignac number, because 425722325817 - 2² = 425722325813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425722325813) 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, 70953720967 + ... + 70953720972.

It is an arithmetic number, because the mean of its divisors is an integer number (141907441940).

Almost surely, 2^425722325817 is an apocalyptic number.

It is an amenable number.

425722325817 is a deficient number, since it is larger than the sum of its proper divisors (141907441943).

425722325817 is a wasteful number, since it uses less digits than its factorization.

425722325817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141907441942.

The product of its digits is 1881600, while the sum is 48.

The spelling of 425722325817 in words is "four hundred twenty-five billion, seven hundred twenty-two million, three hundred twenty-five thousand, eight hundred seventeen".