5643942972 has 24 divisors (see below), whose sum is σ = 13214154576. Its totient is φ = 1874892288.

The previous prime is 5643942959. The next prime is 5643943003. The reversal of 5643942972 is 2792493465.

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 7 ways as a sum of consecutive naturals, for example, 799093 + ... + 806124.

It is an arithmetic number, because the mean of its divisors is an integer number (550589774).

Almost surely, 2^5643942972 is an apocalyptic number.

It is an amenable number.

5643942972 is an abundant number, since it is smaller than the sum of its proper divisors (7570211604).

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

5643942972 is a wasteful number, since it uses less digits than its factorization.

5643942972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605517 (or 1605515 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The square root of 5643942972 is about 75126.1803368173. The cubic root of 5643942972 is about 1780.4408044341.

The spelling of 5643942972 in words is "five billion, six hundred forty-three million, nine hundred forty-two thousand, nine hundred seventy-two".