5639962943 has 4 divisors (see below), whose sum is σ = 5641638408. Its totient is φ = 5638287480.

The previous prime is 5639962931. The next prime is 5639962961. The reversal of 5639962943 is 3492699365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5639962943 - 2⁶ = 5639962879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639962843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832673 + ... + 839418.

It is an arithmetic number, because the mean of its divisors is an integer number (1410409602).

Almost surely, 2^5639962943 is an apocalyptic number.

5639962943 is a deficient number, since it is larger than the sum of its proper divisors (1675465).

5639962943 is a wasteful number, since it uses less digits than its factorization.

5639962943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675464.

The product of its digits is 9447840, while the sum is 56.

The square root of 5639962943 is about 75099.6867037406. The cubic root of 5639962943 is about 1780.0221921022.

The spelling of 5639962943 in words is "five billion, six hundred thirty-nine million, nine hundred sixty-two thousand, nine hundred forty-three".