4687728685 has 8 divisors (see below), whose sum is σ = 5625785880. Its totient is φ = 3749841984.

The previous prime is 4687728679. The next prime is 4687728707. The reversal of 4687728685 is 5868277864.

4687728685 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 79762761 + 4607965924 = 8931^2 + 67882^2 .

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 4687728685 - 2¹³ = 4687720493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28731 + ... + 100999.

It is an arithmetic number, because the mean of its divisors is an integer number (703223235).

Almost surely, 2^4687728685 is an apocalyptic number.

It is an amenable number.

4687728685 is a deficient number, since it is larger than the sum of its proper divisors (938057195).

4687728685 is a wasteful number, since it uses less digits than its factorization.

4687728685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85247.

The product of its digits is 36126720, while the sum is 61.

The square root of 4687728685 is about 68466.9897468846. The cubic root of 4687728685 is about 1673.6095906338.

The spelling of 4687728685 in words is "four billion, six hundred eighty-seven million, seven hundred twenty-eight thousand, six hundred eighty-five".