2179205772 has 24 divisors (see below), whose sum is σ = 5203066176. Its totient is φ = 709508688.

The previous prime is 2179205767. The next prime is 2179205837. The reversal of 2179205772 is 2775029712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111118 + ... + 2112149.

It is an arithmetic number, because the mean of its divisors is an integer number (216794424).

Almost surely, 2^2179205772 is an apocalyptic number.

It is an amenable number.

2179205772 is an abundant number, since it is smaller than the sum of its proper divisors (3023860404).

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

2179205772 is a wasteful number, since it uses less digits than its factorization.

2179205772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223317 (or 4223315 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 2179205772 is about 46681.9640974970. The cubic root of 2179205772 is about 1296.4807720355.

The spelling of 2179205772 in words is "two billion, one hundred seventy-nine million, two hundred five thousand, seven hundred seventy-two".