43381275273 has 16 divisors (see below), whose sum is σ = 73449778560. Its totient is φ = 24789300048.

The previous prime is 43381275239. The next prime is 43381275383. The reversal of 43381275273 is 37257218334.

It is a happy number.

43381275273 is a `hidden beast` number, since 4 + 33 + 81 + 275 + 273 = 666.

43381275273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43381275273 - 2¹⁸ = 43381013129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43381275673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114765090 + ... + 114765467.

It is an arithmetic number, because the mean of its divisors is an integer number (4590611160).

Almost surely, 2^43381275273 is an apocalyptic number.

It is an amenable number.

43381275273 is a deficient number, since it is larger than the sum of its proper divisors (30068503287).

43381275273 is a wasteful number, since it uses less digits than its factorization.

43381275273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229530573 (or 229530567 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 43381275273 in words is "forty-three billion, three hundred eighty-one million, two hundred seventy-five thousand, two hundred seventy-three".