43000043303545 has 8 divisors (see below), whose sum is σ = 52573637850696. Its totient is φ = 33750977385216.

The previous prime is 43000043303533. The next prime is 43000043303561. The reversal of 43000043303545 is 54530334000034.

It can be written as a sum of positive squares in 4 ways, for example, as 10279904400441 + 32720138903104 = 3206229^2 + 5720152^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43000043303545 - 2²¹ = 43000041206393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43000043303545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81132156912 + ... + 81132157441.

It is an arithmetic number, because the mean of its divisors is an integer number (6571704731337).

Almost surely, 2^{43000043303545} is an apocalyptic number.

It is an amenable number.

43000043303545 is a deficient number, since it is larger than the sum of its proper divisors (9573594547151).

43000043303545 is a wasteful number, since it uses less digits than its factorization.

43000043303545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162264314411.

The product of its (nonzero) digits is 129600, while the sum is 34.

Adding to 43000043303545 its reverse (54530334000034), we get a palindrome (97530377303579).

The spelling of 43000043303545 in words is "forty-three trillion, forty-three million, three hundred three thousand, five hundred forty-five".