2172064734 has 48 divisors (see below), whose sum is σ = 5577656448. Its totient is φ = 620588952.

The previous prime is 2172064717. The next prime is 2172064747. The reversal of 2172064734 is 4374602712.

2172064734 is a `hidden beast` number, since 2 + 1 + 7 + 2 + 0 + 647 + 3 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315832 + ... + 322635.

It is an arithmetic number, because the mean of its divisors is an integer number (116201176).

Almost surely, 2^2172064734 is an apocalyptic number.

2172064734 is an abundant number, since it is smaller than the sum of its proper divisors (3405591714).

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

2172064734 is an equidigital number, since it uses as much as digits as its factorization.

2172064734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638491 (or 638479 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 2172064734 is about 46605.4152862090. The cubic root of 2172064734 is about 1295.0630766869.

The spelling of 2172064734 in words is "two billion, one hundred seventy-two million, sixty-four thousand, seven hundred thirty-four".