4243891497216 has 144 divisors (see below), whose sum is σ = 12910966422144. Its totient is φ = 1212309061632.

The previous prime is 4243891497187. The next prime is 4243891497317. The reversal of 4243891497216 is 6127941983424.

It is a self number, because there is not a number n which added to its sum of digits gives 4243891497216.

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, 29156716 + ... + 29301908.

Almost surely, 2^{4243891497216} 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 4243891497216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6455483211072).

4243891497216 is an abundant number, since it is smaller than the sum of its proper divisors (8667074924928).

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

4243891497216 is a wasteful number, since it uses less digits than its factorization.

4243891497216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150656 (or 150642 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 60.

The spelling of 4243891497216 in words is "four trillion, two hundred forty-three billion, eight hundred ninety-one million, four hundred ninety-seven thousand, two hundred sixteen".