425842345857 has 4 divisors (see below), whose sum is σ = 567789794480. Its totient is φ = 283894897236.

The previous prime is 425842345853. The next prime is 425842345871. The reversal of 425842345857 is 758543248524.

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 425842345857 - 2² = 425842345853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425842345797 and 425842345806.

It is not an unprimeable number, because it can be changed into a prime (425842345853) 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, 70973724307 + ... + 70973724312.

It is an arithmetic number, because the mean of its divisors is an integer number (141947448620).

Almost surely, 2^425842345857 is an apocalyptic number.

It is an amenable number.

425842345857 is a deficient number, since it is larger than the sum of its proper divisors (141947448623).

425842345857 is a wasteful number, since it uses less digits than its factorization.

425842345857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141947448622.

The product of its digits is 43008000, while the sum is 57.

The spelling of 425842345857 in words is "four hundred twenty-five billion, eight hundred forty-two million, three hundred forty-five thousand, eight hundred fifty-seven".