423076856844 has 96 divisors (see below), whose sum is σ = 1072857139200. Its totient is φ = 129252575232.

The previous prime is 423076856819. The next prime is 423076856849. The reversal of 423076856844 is 448658670324.

It is not an unprimeable number, because it can be changed into a prime (423076856849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797144 + ... + 2018880.

It is an arithmetic number, because the mean of its divisors is an integer number (11175595200).

Almost surely, 2^423076856844 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 423076856844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536428569600).

423076856844 is an abundant number, since it is smaller than the sum of its proper divisors (649780282356).

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

423076856844 is a wasteful number, since it uses less digits than its factorization.

423076856844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222007 (or 222005 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 57.

The spelling of 423076856844 in words is "four hundred twenty-three billion, seventy-six million, eight hundred fifty-six thousand, eight hundred forty-four".