423644061016 has 64 divisors (see below), whose sum is σ = 894670479360. Its totient is φ = 186389280000.

The previous prime is 423644060993. The next prime is 423644061041. The reversal of 423644061016 is 610160446324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4060 + ... + 920491.

It is an arithmetic number, because the mean of its divisors is an integer number (13979226240).

Almost surely, 2^423644061016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423644061016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447335239680).

423644061016 is an abundant number, since it is smaller than the sum of its proper divisors (471026418344).

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

423644061016 is a wasteful number, since it uses less digits than its factorization.

423644061016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924736 (or 924732 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 423644061016 in words is "four hundred twenty-three billion, six hundred forty-four million, sixty-one thousand, sixteen".