43305384782243 has 32 divisors (see below), whose sum is σ = 44406294958080. Its totient is φ = 42220678500000.

The previous prime is 43305384782221. The next prime is 43305384782249. The reversal of 43305384782243 is 34228748350334.

It is a cyclic number.

It is not a de Polignac number, because 43305384782243 - 2¹² = 43305384778147 is a prime.

It is a super-2 number, since 2×43305384782243² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43305384782249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3149246618 + ... + 3149260368.

It is an arithmetic number, because the mean of its divisors is an integer number (1387696717440).

Almost surely, 2^{43305384782243} is an apocalyptic number.

43305384782243 is a deficient number, since it is larger than the sum of its proper divisors (1100910175837).

43305384782243 is a wasteful number, since it uses less digits than its factorization.

43305384782243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15119.

The product of its (nonzero) digits is 46448640, while the sum is 56.

The spelling of 43305384782243 in words is "forty-three trillion, three hundred five billion, three hundred eighty-four million, seven hundred eighty-two thousand, two hundred forty-three".