423265820712 has 256 divisors, whose sum is σ = 1326307737600. Its totient is φ = 109941027840.

The previous prime is 423265820711. The next prime is 423265820713. The reversal of 423265820712 is 217028562324.

It is an interprime number because it is at equal distance from previous prime (423265820711) and next prime (423265820713).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (423265820711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5550313 + ... + 5626055.

It is an arithmetic number, because the mean of its divisors is an integer number (5180889600).

Almost surely, 2^423265820712 is an apocalyptic number.

423265820712 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423265820712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663153868800).

423265820712 is an abundant number, since it is smaller than the sum of its proper divisors (903041916888).

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

423265820712 is a wasteful number, since it uses less digits than its factorization.

423265820712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75856 (or 75852 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 423265820712 in words is "four hundred twenty-three billion, two hundred sixty-five million, eight hundred twenty thousand, seven hundred twelve".