2171934084 has 12 divisors (see below), whose sum is σ = 5067846224. Its totient is φ = 723978024.

The previous prime is 2171934071. The next prime is 2171934101. The reversal of 2171934084 is 4804391712.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90497242 + ... + 90497265.

Almost surely, 2^2171934084 is an apocalyptic number.

It is an amenable number.

2171934084 is an abundant number, since it is smaller than the sum of its proper divisors (2895912140).

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

2171934084 is a wasteful number, since it uses less digits than its factorization.

2171934084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180994514 (or 180994512 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2171934084 is about 46604.0136039805. The cubic root of 2171934084 is about 1295.0371100907.

The spelling of 2171934084 in words is "two billion, one hundred seventy-one million, nine hundred thirty-four thousand, eighty-four".