4861579861 has 8 divisors (see below), whose sum is σ = 4879458584. Its totient is φ = 4843722240.

The previous prime is 4861579847. The next prime is 4861579883. The reversal of 4861579861 is 1689751684.

It can be written as a sum of positive squares in 4 ways, for example, as 201469636 + 4660110225 = 14194^2 + 68265^2 .

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 4861579861 - 2¹³ = 4861571669 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 (4861579841) 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, 566281 + ... + 574801.

It is an arithmetic number, because the mean of its divisors is an integer number (609932323).

Almost surely, 2^4861579861 is an apocalyptic number.

It is an amenable number.

4861579861 is a deficient number, since it is larger than the sum of its proper divisors (17878723).

4861579861 is a wasteful number, since it uses less digits than its factorization.

4861579861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10551.

The product of its digits is 2903040, while the sum is 55.

The square root of 4861579861 is about 69725.0303764724. The cubic root of 4861579861 is about 1694.0483760666.

The spelling of 4861579861 in words is "four billion, eight hundred sixty-one million, five hundred seventy-nine thousand, eight hundred sixty-one".