4887666541 has 8 divisors (see below), whose sum is σ = 4973152184. Its totient is φ = 4802353920.

The previous prime is 4887666529. The next prime is 4887666557. The reversal of 4887666541 is 1456667884.

It can be written as a sum of positive squares in 4 ways, for example, as 202948516 + 4684718025 = 14246^2 + 68445^2 .

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 4887666541 - 2⁹ = 4887666029 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 (4887666241) 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, 14401 + ... + 99913.

It is an arithmetic number, because the mean of its divisors is an integer number (621644023).

Almost surely, 2^4887666541 is an apocalyptic number.

It is an amenable number.

4887666541 is a deficient number, since it is larger than the sum of its proper divisors (85485643).

4887666541 is an equidigital number, since it uses as much as digits as its factorization.

4887666541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86511.

The product of its digits is 7741440, while the sum is 55.

The square root of 4887666541 is about 69911.8483592016. The cubic root of 4887666541 is about 1697.0729956828.

The spelling of 4887666541 in words is "four billion, eight hundred eighty-seven million, six hundred sixty-six thousand, five hundred forty-one".