67423838433216 has 112 divisors (see below), whose sum is σ = 179096688592800. Its totient is φ = 22385873387520.

The previous prime is 67423838433209. The next prime is 67423838433241. The reversal of 67423838433216 is 61233483832476.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67423838433216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275466626 + ... + 1275519486.

Almost surely, 2^{67423838433216} 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 67423838433216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89548344296400).

67423838433216 is an abundant number, since it is smaller than the sum of its proper divisors (111672850159584).

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

67423838433216 is a wasteful number, since it uses less digits than its factorization.

67423838433216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78982 (or 78972 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 60.

The spelling of 67423838433216 in words is "sixty-seven trillion, four hundred twenty-three billion, eight hundred thirty-eight million, four hundred thirty-three thousand, two hundred sixteen".