43320509352 has 192 divisors, whose sum is σ = 131063400000. Its totient is φ = 12846200832.

The previous prime is 43320509347. The next prime is 43320509417. The reversal of 43320509352 is 25390502334.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11602878 + ... + 11606610.

It is an arithmetic number, because the mean of its divisors is an integer number (682621875).

Almost surely, 2^43320509352 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 43320509352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65531700000).

43320509352 is an abundant number, since it is smaller than the sum of its proper divisors (87742890648).

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

43320509352 is a wasteful number, since it uses less digits than its factorization.

43320509352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 4273 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 43320509352 in words is "forty-three billion, three hundred twenty million, five hundred nine thousand, three hundred fifty-two".