4351145523444 has 144 divisors (see below), whose sum is σ = 11434782078720. Its totient is φ = 1394271740160.

The previous prime is 4351145523421. The next prime is 4351145523467. The reversal of 4351145523444 is 4443255411534.

4351145523444 is a `hidden beast` number, since 4 + 3 + 5 + 114 + 5 + 523 + 4 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (4351145523421) and next prime (4351145523467).

It is a super-2 number, since 2×4351145523444² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4351145523444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19635714 + ... + 19856070.

It is an arithmetic number, because the mean of its divisors is an integer number (79408208880).

Almost surely, 2^{4351145523444} 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 4351145523444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5717391039360).

4351145523444 is an abundant number, since it is smaller than the sum of its proper divisors (7083636555276).

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

4351145523444 is a wasteful number, since it uses less digits than its factorization.

4351145523444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220630 (or 220625 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

The spelling of 4351145523444 in words is "four trillion, three hundred fifty-one billion, one hundred forty-five million, five hundred twenty-three thousand, four hundred forty-four".