2171063972 has 36 divisors (see below), whose sum is σ = 4821458544. Its totient is φ = 845868240.

The previous prime is 2171063969. The next prime is 2171063987. The reversal of 2171063972 is 2793601712.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501338 + ... + 505649.

It is an arithmetic number, because the mean of its divisors is an integer number (133929404).

Almost surely, 2^2171063972 is an apocalyptic number.

2171063972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2171063972 is an abundant number, since it is smaller than the sum of its proper divisors (2650394572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2171063972 is a wasteful number, since it uses less digits than its factorization.

2171063972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007016 (or 1007007 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 2171063972 is about 46594.6775072003. The cubic root of 2171063972 is about 1294.8641493723.

The spelling of 2171063972 in words is "two billion, one hundred seventy-one million, sixty-three thousand, nine hundred seventy-two".