4687468821 has 36 divisors (see below), whose sum is σ = 7964786700. Its totient is φ = 2648435328.

The previous prime is 4687468789. The next prime is 4687468823. The reversal of 4687468821 is 1288647864.

It can be written as a sum of positive squares in 2 ways, for example, as 1004192721 + 3683276100 = 31689^2 + 60690^2 .

It is not a de Polignac number, because 4687468821 - 2⁵ = 4687468789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4687468823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20466 + ... + 98963.

It is an arithmetic number, because the mean of its divisors is an integer number (221244075).

Almost surely, 2^4687468821 is an apocalyptic number.

It is an amenable number.

4687468821 is a deficient number, since it is larger than the sum of its proper divisors (3277317879).

4687468821 is a wasteful number, since it uses less digits than its factorization.

4687468821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119538 (or 119528 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 4687468821 is about 68465.0919885455. The cubic root of 4687468821 is about 1673.5786645750.

It can be divided in two parts, 468 and 7468821, that added together give a square (7469289 = 2733²).

The spelling of 4687468821 in words is "four billion, six hundred eighty-seven million, four hundred sixty-eight thousand, eight hundred twenty-one".