4887139685 has 8 divisors (see below), whose sum is σ = 6209542296. Its totient is φ = 3679728640.

The previous prime is 4887139679. The next prime is 4887139693. The reversal of 4887139685 is 5869317884.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2185843009 + 2701296676 = 46753^2 + 51974^2 .

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

It is not a de Polignac number, because 4887139685 - 2⁴ = 4887139669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28747796 + ... + 28747965.

It is an arithmetic number, because the mean of its divisors is an integer number (776192787).

Almost surely, 2^4887139685 is an apocalyptic number.

It is an amenable number.

4887139685 is a deficient number, since it is larger than the sum of its proper divisors (1322402611).

4887139685 is a wasteful number, since it uses less digits than its factorization.

4887139685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57495783.

The product of its digits is 11612160, while the sum is 59.

The square root of 4887139685 is about 69908.0802554326. The cubic root of 4887139685 is about 1697.0120159896.

The spelling of 4887139685 in words is "four billion, eight hundred eighty-seven million, one hundred thirty-nine thousand, six hundred eighty-five".