4689978867 has 64 divisors (see below), whose sum is σ = 8401920000. Its totient is φ = 2525792544.

The previous prime is 4689978863. The next prime is 4689978893. The reversal of 4689978867 is 7688799864.

4689978867 is a `hidden beast` number, since 468 + 99 + 78 + 8 + 6 + 7 = 666.

It is not a de Polignac number, because 4689978867 - 2² = 4689978863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4689978795 and 4689978804.

It is not an unprimeable number, because it can be changed into a prime (4689978863) 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 63 ways as a sum of consecutive naturals, for example, 711328 + ... + 717890.

It is an arithmetic number, because the mean of its divisors is an integer number (131280000).

Almost surely, 2^4689978867 is an apocalyptic number.

4689978867 is a deficient number, since it is larger than the sum of its proper divisors (3711941133).

4689978867 is a wasteful number, since it uses less digits than its factorization.

4689978867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6797 (or 6791 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The square root of 4689978867 is about 68483.4203804103. The cubic root of 4689978867 is about 1673.8773339286.

The spelling of 4689978867 in words is "four billion, six hundred eighty-nine million, nine hundred seventy-eight thousand, eight hundred sixty-seven".