7171945243 has 8 divisors (see below), whose sum is σ = 7269025280. Its totient is φ = 7075022760.

The previous prime is 7171945241. The next prime is 7171945271. The reversal of 7171945243 is 3425491717.

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

It is a cyclic number.

It is not a de Polignac number, because 7171945243 - 2¹ = 7171945241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7171945243.

It is not an unprimeable number, because it can be changed into a prime (7171945241) 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, 53746 + ... + 131272.

It is an arithmetic number, because the mean of its divisors is an integer number (908628160).

Almost surely, 2^7171945243 is an apocalyptic number.

7171945243 is a deficient number, since it is larger than the sum of its proper divisors (97080037).

7171945243 is a wasteful number, since it uses less digits than its factorization.

7171945243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78777.

The product of its digits is 211680, while the sum is 43.

The square root of 7171945243 is about 84687.3381503988. The cubic root of 7171945243 is about 1928.4674889045.

The spelling of 7171945243 in words is "seven billion, one hundred seventy-one million, nine hundred forty-five thousand, two hundred forty-three".