6259678649 has 32 divisors (see below), whose sum is σ = 7729612800. Its totient is φ = 4949112960.

The previous prime is 6259678631. The next prime is 6259678657. The reversal of 6259678649 is 9468769526.

It is a cyclic number.

It is not a de Polignac number, because 6259678649 - 2²⁴ = 6242901433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6259678591 and 6259678600.

It is not an unprimeable number, because it can be changed into a prime (6259678609) 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 31 ways as a sum of consecutive naturals, for example, 3963542 + ... + 3965120.

It is an arithmetic number, because the mean of its divisors is an integer number (241550400).

Almost surely, 2^6259678649 is an apocalyptic number.

It is an amenable number.

6259678649 is a deficient number, since it is larger than the sum of its proper divisors (1469934151).

6259678649 is a wasteful number, since it uses less digits than its factorization.

6259678649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its digits is 39191040, while the sum is 62.

The square root of 6259678649 is about 79118.1309751437. The cubic root of 6259678649 is about 1842.9660975317.

The spelling of 6259678649 in words is "six billion, two hundred fifty-nine million, six hundred seventy-eight thousand, six hundred forty-nine".