42423425631 has 24 divisors (see below), whose sum is σ = 63287020160. Its totient is φ = 27356097600.

The previous prime is 42423425593. The next prime is 42423425633. The reversal of 42423425631 is 13652432424.

It is not a de Polignac number, because 42423425631 - 2³¹ = 40275941983 is a prime.

It is a super-2 number, since 2×42423425631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423425633) 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 23 ways as a sum of consecutive naturals, for example, 528621 + ... + 603561.

Almost surely, 2^42423425631 is an apocalyptic number.

42423425631 is a deficient number, since it is larger than the sum of its proper divisors (20863594529).

42423425631 is a wasteful number, since it uses less digits than its factorization.

42423425631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77007 (or 77004 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The spelling of 42423425631 in words is "forty-two billion, four hundred twenty-three million, four hundred twenty-five thousand, six hundred thirty-one".