4879447839 has 24 divisors (see below), whose sum is σ = 8063258112. Its totient is φ = 2785384080.

The previous prime is 4879447829. The next prime is 4879447841. The reversal of 4879447839 is 9387449784.

4879447839 is a `hidden beast` number, since 48 + 7 + 94 + 478 + 39 = 666.

It is not a de Polignac number, because 4879447839 - 2⁹ = 4879447327 is a prime.

It is a super-2 number, since 2×4879447839² = 47618022427043539842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4879447819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22534 + ... + 101324.

It is an arithmetic number, because the mean of its divisors is an integer number (335969088).

Almost surely, 2^4879447839 is an apocalyptic number.

4879447839 is a deficient number, since it is larger than the sum of its proper divisors (3183810273).

4879447839 is a wasteful number, since it uses less digits than its factorization.

4879447839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79787 (or 79784 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The square root of 4879447839 is about 69853.0445936324. The cubic root of 4879447839 is about 1696.1212421067.

The spelling of 4879447839 in words is "four billion, eight hundred seventy-nine million, four hundred forty-seven thousand, eight hundred thirty-nine".