4820861665 has 16 divisors (see below), whose sum is σ = 5854539600. Its totient is φ = 3810419712.

The previous prime is 4820861657. The next prime is 4820861681. The reversal of 4820861665 is 5661680284.

It can be written as a sum of positive squares in 8 ways, for example, as 863948449 + 3956913216 = 29393^2 + 62904^2 .

It is a cyclic number.

It is not a de Polignac number, because 4820861665 - 2³ = 4820861657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712639 + ... + 719371.

It is an arithmetic number, because the mean of its divisors is an integer number (365908725).

Almost surely, 2^4820861665 is an apocalyptic number.

It is an amenable number.

4820861665 is a deficient number, since it is larger than the sum of its proper divisors (1033677935).

4820861665 is a wasteful number, since it uses less digits than its factorization.

4820861665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 4820861665 is about 69432.4251700889. The cubic root of 4820861665 is about 1689.3056056235.

The spelling of 4820861665 in words is "four billion, eight hundred twenty million, eight hundred sixty-one thousand, six hundred sixty-five".