5639903863 has 8 divisors (see below), whose sum is σ = 6153275520. Its totient is φ = 5126641080.

The previous prime is 5639903837. The next prime is 5639903903. The reversal of 5639903863 is 3683099365.

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

It is not a de Polignac number, because 5639903863 - 2²⁹ = 5103032951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5639903863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639903813) 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, 112156 + ... + 154462.

It is an arithmetic number, because the mean of its divisors is an integer number (769159440).

Almost surely, 2^5639903863 is an apocalyptic number.

5639903863 is a deficient number, since it is larger than the sum of its proper divisors (513371657).

5639903863 is a wasteful number, since it uses less digits than its factorization.

5639903863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54437.

The product of its (nonzero) digits is 3149280, while the sum is 52.

The square root of 5639903863 is about 75099.2933588592. The cubic root of 5639903863 is about 1780.0159766903.

The spelling of 5639903863 in words is "five billion, six hundred thirty-nine million, nine hundred three thousand, eight hundred sixty-three".