444213312450 has 192 divisors, whose sum is σ = 1213163816832. Its totient is φ = 107109273600.

The previous prime is 444213312449. The next prime is 444213312469. The reversal of 444213312450 is 54213312444.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6655444 + ... + 6721856.

It is an arithmetic number, because the mean of its divisors is an integer number (6318561546).

Almost surely, 2^444213312450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444213312450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606581908416).

444213312450 is an abundant number, since it is smaller than the sum of its proper divisors (768950504382).

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

444213312450 is a wasteful number, since it uses less digits than its factorization.

444213312450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66549 (or 66544 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 444213312450 its reverse (54213312444), we get a palindrome (498426624894).

The spelling of 444213312450 in words is "four hundred forty-four billion, two hundred thirteen million, three hundred twelve thousand, four hundred fifty".