423005063634 has 96 divisors (see below), whose sum is σ = 1003746691584. Its totient is φ = 128213314560.

The previous prime is 423005063599. The next prime is 423005063641. The reversal of 423005063634 is 436360500324.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1128567 + ... + 1455909.

It is an arithmetic number, because the mean of its divisors is an integer number (10455694704).

Almost surely, 2^423005063634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423005063634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501873345792).

423005063634 is an abundant number, since it is smaller than the sum of its proper divisors (580741627950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423005063634 is a wasteful number, since it uses less digits than its factorization.

423005063634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327512 (or 327509 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 423005063634 its reverse (436360500324), we get a palindrome (859365563958).

The spelling of 423005063634 in words is "four hundred twenty-three billion, five million, sixty-three thousand, six hundred thirty-four".