2143432568 has 32 divisors (see below), whose sum is σ = 4068792000. Its totient is φ = 1058449920.

The previous prime is 2143432549. The next prime is 2143432633. The reversal of 2143432568 is 8652343412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144673 + ... + 1146543.

It is an arithmetic number, because the mean of its divisors is an integer number (127149750).

Almost surely, 2^2143432568 is an apocalyptic number.

It is an amenable number.

2143432568 is a deficient number, since it is larger than the sum of its proper divisors (1925359432).

2143432568 is a wasteful number, since it uses less digits than its factorization.

2143432568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3571 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 2143432568 is about 46297.2198733358. The cubic root of 2143432568 is about 1289.3473789616.

The spelling of 2143432568 in words is "two billion, one hundred forty-three million, four hundred thirty-two thousand, five hundred sixty-eight".