43543404421355 has 8 divisors (see below), whose sum is σ = 52252184744064. Its totient is φ = 34834657244800.

The previous prime is 43543404421351. The next prime is 43543404421367. The reversal of 43543404421355 is 55312440434534.

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

It is not a de Polignac number, because 43543404421355 - 2² = 43543404421351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43543404421351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5298491 + ... + 10731300.

It is an arithmetic number, because the mean of its divisors is an integer number (6531523093008).

Almost surely, 2^{43543404421355} is an apocalyptic number.

43543404421355 is a deficient number, since it is larger than the sum of its proper divisors (8708780322709).

43543404421355 is a wasteful number, since it uses less digits than its factorization.

43543404421355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16573077.

The product of its (nonzero) digits is 6912000, while the sum is 47.

Adding to 43543404421355 its reverse (55312440434534), we get a palindrome (98855844855889).

The spelling of 43543404421355 in words is "forty-three trillion, five hundred forty-three billion, four hundred four million, four hundred twenty-one thousand, three hundred fifty-five".