43171712706445 has 4 divisors (see below), whose sum is σ = 51806055247740. Its totient is φ = 34537370165152.

The previous prime is 43171712706401. The next prime is 43171712706481. The reversal of 43171712706445 is 54460721717134.

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 23255869684356 + 19915843022089 = 4822434^2 + 4462717^2 .

It is a cyclic number.

It is not a de Polignac number, because 43171712706445 - 2¹¹ = 43171712704397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43171712706392 and 43171712706401.

It is a congruent number.

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, 4317171270640 + ... + 4317171270649.

It is an arithmetic number, because the mean of its divisors is an integer number (12951513811935).

Almost surely, 2^{43171712706445} is an apocalyptic number.

It is an amenable number.

43171712706445 is a deficient number, since it is larger than the sum of its proper divisors (8634342541295).

43171712706445 is an equidigital number, since it uses as much as digits as its factorization.

43171712706445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634342541294.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 43171712706445 in words is "forty-three trillion, one hundred seventy-one billion, seven hundred twelve million, seven hundred six thousand, four hundred forty-five".