42489939325 has 6 divisors (see below), whose sum is σ = 52687524794. Its totient is φ = 33991951440.

The previous prime is 42489939311. The next prime is 42489939329. The reversal of 42489939325 is 52393998424.

42489939325 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 5240167321 + 37249772004 = 72389^2 + 193002^2 .

It is not a de Polignac number, because 42489939325 - 2¹¹ = 42489937277 is a prime.

It is a super-3 number, since 3×42489939325³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42489939325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42489939329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 849798762 + ... + 849798811.

Almost surely, 2^42489939325 is an apocalyptic number.

It is an amenable number.

42489939325 is a deficient number, since it is larger than the sum of its proper divisors (10197585469).

42489939325 is a wasteful number, since it uses less digits than its factorization.

42489939325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699597583 (or 1699597578 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 58.

The spelling of 42489939325 in words is "forty-two billion, four hundred eighty-nine million, nine hundred thirty-nine thousand, three hundred twenty-five".