4171008985 has 32 divisors (see below), whose sum is σ = 5885187840. Its totient is φ = 2797766400.

The previous prime is 4171008979. The next prime is 4171008997. The reversal of 4171008985 is 5898001714.

It is a happy number.

It is not a de Polignac number, because 4171008985 - 2²⁵ = 4137454553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1456455 + ... + 1459315.

It is an arithmetic number, because the mean of its divisors is an integer number (183912120).

Almost surely, 2^4171008985 is an apocalyptic number.

It is an amenable number.

4171008985 is a deficient number, since it is larger than the sum of its proper divisors (1714178855).

4171008985 is a wasteful number, since it uses less digits than its factorization.

4171008985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 4171008985 is about 64583.3491311809. The cubic root of 4171008985 is about 1609.7077752357.

The spelling of 4171008985 in words is "four billion, one hundred seventy-one million, eight thousand, nine hundred eighty-five".