43245144520 has 128 divisors (see below), whose sum is σ = 102348748800. Its totient is φ = 16422303744.

The previous prime is 43245144473. The next prime is 43245144533. The reversal of 43245144520 is 2544154234.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39206289 + ... + 39207391.

It is an arithmetic number, because the mean of its divisors is an integer number (799599600).

Almost surely, 2^43245144520 is an apocalyptic number.

43245144520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43245144520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51174374400).

43245144520 is an abundant number, since it is smaller than the sum of its proper divisors (59103604280).

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

43245144520 is a wasteful number, since it uses less digits than its factorization.

43245144520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 43245144520 its reverse (2544154234), we get a palindrome (45789298754).

The spelling of 43245144520 in words is "forty-three billion, two hundred forty-five million, one hundred forty-four thousand, five hundred twenty".