43453544960 has 640 divisors, whose sum is σ = 133641446400. Its totient is φ = 13487308800.

The previous prime is 43453544917. The next prime is 43453544963. The reversal of 43453544960 is 6944535434.

It is a tau number, because it is divible by the number of its divisors (640).

It is not an unprimeable number, because it can be changed into a prime (43453544963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 612021725 + ... + 612021795.

It is an arithmetic number, because the mean of its divisors is an integer number (208814760).

Almost surely, 2^43453544960 is an apocalyptic number.

43453544960 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 43453544960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66820723200).

43453544960 is an abundant number, since it is smaller than the sum of its proper divisors (90187901440).

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

43453544960 is an equidigital number, since it uses as much as digits as its factorization.

43453544960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 43453544960 in words is "forty-three billion, four hundred fifty-three million, five hundred forty-four thousand, nine hundred sixty".