423534256896 has 144 divisors (see below), whose sum is σ = 1182319455744. Its totient is φ = 134439432192.

The previous prime is 423534256841. The next prime is 423534256973. The reversal of 423534256896 is 698652435324.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 1176991 + ... + 1494113.

It is an arithmetic number, because the mean of its divisors is an integer number (8210551776).

Almost surely, 2^423534256896 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 423534256896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591159727872).

423534256896 is an abundant number, since it is smaller than the sum of its proper divisors (758785198848).

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

423534256896 is a wasteful number, since it uses less digits than its factorization.

423534256896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317226 (or 317212 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 57.

The spelling of 423534256896 in words is "four hundred twenty-three billion, five hundred thirty-four million, two hundred fifty-six thousand, eight hundred ninety-six".