6401839171 has 48 divisors (see below), whose sum is σ = 8393887488. Its totient is φ = 4833561600.

The previous prime is 6401839133. The next prime is 6401839187. The reversal of 6401839171 is 1719381046.

It is not a de Polignac number, because 6401839171 - 2⁹ = 6401838659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6401839111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1439311 + ... + 1443751.

It is an arithmetic number, because the mean of its divisors is an integer number (174872656).

Almost surely, 2^6401839171 is an apocalyptic number.

6401839171 is a deficient number, since it is larger than the sum of its proper divisors (1992048317).

6401839171 is a wasteful number, since it uses less digits than its factorization.

6401839171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 6401839171 is about 80011.4939930508. The cubic root of 6401839171 is about 1856.8133638196.

The spelling of 6401839171 in words is "six billion, four hundred one million, eight hundred thirty-nine thousand, one hundred seventy-one".