4721873863 has 12 divisors (see below), whose sum is σ = 5695401360. Its totient is φ = 3834301536.

The previous prime is 4721873857. The next prime is 4721873887. The reversal of 4721873863 is 3683781274.

It is a happy number.

It is not a de Polignac number, because 4721873863 - 2¹³ = 4721865671 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 (4721873833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 931758 + ... + 936811.

It is an arithmetic number, because the mean of its divisors is an integer number (474616780).

Almost surely, 2^4721873863 is an apocalyptic number.

4721873863 is a deficient number, since it is larger than the sum of its proper divisors (973527497).

4721873863 is a wasteful number, since it uses less digits than its factorization.

4721873863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868614 (or 1868595 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 4721873863 is about 68715.8923612289. The cubic root of 4721873863 is about 1677.6632600597.

The spelling of 4721873863 in words is "four billion, seven hundred twenty-one million, eight hundred seventy-three thousand, eight hundred sixty-three".