423605325638 has 32 divisors (see below), whose sum is σ = 705562513920. Its totient is φ = 189112104160.

The previous prime is 423605325631. The next prime is 423605325659. The reversal of 423605325638 is 836523506324.

It is a junction number, because it is equal to n+sod(n) for n = 423605325592 and 423605325601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423605325631) 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 15 ways as a sum of consecutive naturals, for example, 1283756 + ... + 1579632.

It is an arithmetic number, because the mean of its divisors is an integer number (22048828560).

Almost surely, 2^423605325638 is an apocalyptic number.

423605325638 is a deficient number, since it is larger than the sum of its proper divisors (281957188282).

423605325638 is a wasteful number, since it uses less digits than its factorization.

423605325638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297052.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 423605325638 in words is "four hundred twenty-three billion, six hundred five million, three hundred twenty-five thousand, six hundred thirty-eight".