43072220174345 has 4 divisors (see below), whose sum is σ = 51686664209220. Its totient is φ = 34457776139472.

The previous prime is 43072220174297. The next prime is 43072220174497. The reversal of 43072220174345 is 54347102227034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16616123858944 + 26456096315401 = 4076288^2 + 5143549^2 .

It is a cyclic number.

It is not a de Polignac number, because 43072220174345 - 2¹⁸ = 43072219912201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43072220174296 and 43072220174305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4307222017430 + ... + 4307222017439.

It is an arithmetic number, because the mean of its divisors is an integer number (12921666052305).

Almost surely, 2^{43072220174345} is an apocalyptic number.

It is an amenable number.

43072220174345 is a deficient number, since it is larger than the sum of its proper divisors (8614444034875).

43072220174345 is an equidigital number, since it uses as much as digits as its factorization.

43072220174345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8614444034874.

The product of its (nonzero) digits is 1128960, while the sum is 44.

The spelling of 43072220174345 in words is "forty-three trillion, seventy-two billion, two hundred twenty million, one hundred seventy-four thousand, three hundred forty-five".