8170444971 has 80 divisors (see below), whose sum is σ = 13639816960. Its totient is φ = 4840093440.

The previous prime is 8170444963. The next prime is 8170444991. The reversal of 8170444971 is 1794440718.

It is a happy number.

It is not a de Polignac number, because 8170444971 - 2³ = 8170444963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8170444991) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7474701 + ... + 7475793.

It is an arithmetic number, because the mean of its divisors is an integer number (170497712).

Almost surely, 2^8170444971 is an apocalyptic number.

8170444971 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8170444971 is a deficient number, since it is larger than the sum of its proper divisors (5469371989).

8170444971 is a wasteful number, since it uses less digits than its factorization.

8170444971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 8170444971 is about 90390.5137224034. The cubic root of 8170444971 is about 2014.1040516438.

The spelling of 8170444971 in words is "eight billion, one hundred seventy million, four hundred forty-four thousand, nine hundred seventy-one".