2171296671 has 32 divisors (see below), whose sum is σ = 3058041600. Its totient is φ = 1368407040.

The previous prime is 2171296657. The next prime is 2171296679. The reversal of 2171296671 is 1766921712.

It is a happy number.

It is not a de Polignac number, because 2171296671 - 2⁶ = 2171296607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171296679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1042351 + ... + 1044431.

It is an arithmetic number, because the mean of its divisors is an integer number (95563800).

Almost surely, 2^2171296671 is an apocalyptic number.

2171296671 is a deficient number, since it is larger than the sum of its proper divisors (886744929).

2171296671 is a wasteful number, since it uses less digits than its factorization.

2171296671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its digits is 63504, while the sum is 42.

The square root of 2171296671 is about 46597.1744958855. The cubic root of 2171296671 is about 1294.9104097669.

The spelling of 2171296671 in words is "two billion, one hundred seventy-one million, two hundred ninety-six thousand, six hundred seventy-one".