4879688985 has 24 divisors (see below), whose sum is σ = 8565198720. Its totient is φ = 2569555872.

The previous prime is 4879688981. The next prime is 4879688999. The reversal of 4879688985 is 5898869784.

4879688985 is a `hidden beast` number, since 487 + 9 + 68 + 8 + 9 + 85 = 666.

It is not a de Polignac number, because 4879688985 - 2² = 4879688981 is a prime.

It is a super-2 number, since 2×4879688985² = 47622729180660660450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4879688981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682759 + ... + 689868.

It is an arithmetic number, because the mean of its divisors is an integer number (356883280).

Almost surely, 2^4879688985 is an apocalyptic number.

4879688985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4879688985 is a deficient number, since it is larger than the sum of its proper divisors (3685509735).

4879688985 is a wasteful number, since it uses less digits than its factorization.

4879688985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372717 (or 1372714 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The square root of 4879688985 is about 69854.7706674354. The cubic root of 4879688985 is about 1696.1491828443.

The spelling of 4879688985 in words is "four billion, eight hundred seventy-nine million, six hundred eighty-eight thousand, nine hundred eighty-five".