42351309425 has 6 divisors (see below), whose sum is σ = 52515623718. Its totient is φ = 33881047520.

The previous prime is 42351309367. The next prime is 42351309433. The reversal of 42351309425 is 52490315324.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 178169104 + 42173140321 = 13348^2 + 205361^2 .

It is not a de Polignac number, because 42351309425 - 2⁶ = 42351309361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 847026164 + ... + 847026213.

It is an arithmetic number, because the mean of its divisors is an integer number (8752603953).

Almost surely, 2^42351309425 is an apocalyptic number.

It is an amenable number.

42351309425 is a deficient number, since it is larger than the sum of its proper divisors (10164314293).

42351309425 is a wasteful number, since it uses less digits than its factorization.

42351309425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694052387 (or 1694052382 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 42351309425 in words is "forty-two billion, three hundred fifty-one million, three hundred nine thousand, four hundred twenty-five".