43545130000 has 50 divisors (see below), whose sum is σ = 105427138454. Its totient is φ = 17418048000.

The previous prime is 43545129997. The next prime is 43545130007. The reversal of 43545130000 is 3154534.

It can be written as a sum of positive squares in 5 ways, for example, as 33164780544 + 10380349456 = 182112^2 + 101884^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (43545130007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2167257 + ... + 2187256.

Almost surely, 2^43545130000 is an apocalyptic number.

43545130000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43545130000 is an abundant number, since it is smaller than the sum of its proper divisors (61882008454).

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

43545130000 is an equidigital number, since it uses as much as digits as its factorization.

43545130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354541 (or 4354520 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 43545130000 its reverse (3154534), we get a palindrome (43548284534).

The spelling of 43545130000 in words is "forty-three billion, five hundred forty-five million, one hundred thirty thousand".