4859661961 has 32 divisors (see below), whose sum is σ = 6210183168. Its totient is φ = 3692725440.

The previous prime is 4859661943. The next prime is 4859661967. The reversal of 4859661961 is 1691669584.

4859661961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4859661961 - 2¹⁷ = 4859530889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4859661967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1058076 + ... + 1062658.

It is an arithmetic number, because the mean of its divisors is an integer number (194068224).

Almost surely, 2^4859661961 is an apocalyptic number.

It is an amenable number.

4859661961 is a deficient number, since it is larger than the sum of its proper divisors (1350521207).

4859661961 is a wasteful number, since it uses less digits than its factorization.

4859661961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941.

The product of its digits is 2799360, while the sum is 55.

The square root of 4859661961 is about 69711.2757091706. The cubic root of 4859661961 is about 1693.8255786212.

The spelling of 4859661961 in words is "four billion, eight hundred fifty-nine million, six hundred sixty-one thousand, nine hundred sixty-one".