4879238661 has 96 divisors (see below), whose sum is σ = 8386185600. Its totient is φ = 2777241600.

The previous prime is 4879238599. The next prime is 4879238687. The reversal of 4879238661 is 1668329784.

4879238661 is a `hidden beast` number, since 487 + 9 + 23 + 86 + 61 = 666.

It is not a de Polignac number, because 4879238661 - 2¹⁷ = 4879107589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4879238598 and 4879238607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4879238761) 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 95 ways as a sum of consecutive naturals, for example, 14478285 + ... + 14478621.

It is an arithmetic number, because the mean of its divisors is an integer number (87356100).

Almost surely, 2^4879238661 is an apocalyptic number.

4879238661 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4879238661 is a deficient number, since it is larger than the sum of its proper divisors (3506946939).

4879238661 is a wasteful number, since it uses less digits than its factorization.

4879238661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 421 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 4879238661 is about 69851.5473056968. The cubic root of 4879238661 is about 1696.0970046430.

The spelling of 4879238661 in words is "four billion, eight hundred seventy-nine million, two hundred thirty-eight thousand, six hundred sixty-one".