5639473893 has 8 divisors (see below), whose sum is σ = 7778584800. Its totient is φ = 3630006128.

The previous prime is 5639473871. The next prime is 5639473897. The reversal of 5639473893 is 3983749365.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5639473893 - 2²² = 5635279589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639473897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32410683 + ... + 32410856.

It is an arithmetic number, because the mean of its divisors is an integer number (972323100).

Almost surely, 2^5639473893 is an apocalyptic number.

It is an amenable number.

5639473893 is a deficient number, since it is larger than the sum of its proper divisors (2139110907).

5639473893 is a wasteful number, since it uses less digits than its factorization.

5639473893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64821571.

The product of its digits is 14696640, while the sum is 57.

The square root of 5639473893 is about 75096.4306275605. The cubic root of 5639473893 is about 1779.9707411131.

The spelling of 5639473893 in words is "five billion, six hundred thirty-nine million, four hundred seventy-three thousand, eight hundred ninety-three".