438716429016 has 72 divisors (see below), whose sum is σ = 1118314082340. Its totient is φ = 143423342400.

The previous prime is 438716428999. The next prime is 438716429051. The reversal of 438716429016 is 610924617834.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 438716429016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 171976941 + ... + 171979491.

Almost surely, 2^438716429016 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 438716429016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559157041170).

438716429016 is an abundant number, since it is smaller than the sum of its proper divisors (679597653324).

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

438716429016 is an frugal number, since it uses more digits than its factorization.

438716429016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 438716429016 in words is "four hundred thirty-eight billion, seven hundred sixteen million, four hundred twenty-nine thousand, sixteen".