42431613425 has 6 divisors (see below), whose sum is σ = 52615200678. Its totient is φ = 33945290720.

The previous prime is 42431613397. The next prime is 42431613443. The reversal of 42431613425 is 52431613424.

42431613425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11652770704 + 30778842721 = 107948^2 + 175439^2 .

It is not a de Polignac number, because 42431613425 - 2¹⁰ = 42431612401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848632244 + ... + 848632293.

It is an arithmetic number, because the mean of its divisors is an integer number (8769200113).

Almost surely, 2^42431613425 is an apocalyptic number.

It is an amenable number.

42431613425 is a deficient number, since it is larger than the sum of its proper divisors (10183587253).

42431613425 is a wasteful number, since it uses less digits than its factorization.

42431613425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697264547 (or 1697264542 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

Subtracting 42431613425 from its reverse (52431613424), we obtain a palindrome (9999999999).

The spelling of 42431613425 in words is "forty-two billion, four hundred thirty-one million, six hundred thirteen thousand, four hundred twenty-five".