6738687249 has 16 divisors (see below), whose sum is σ = 10392195072. Its totient is φ = 3804283728.

The previous prime is 6738687233. The next prime is 6738687257. The reversal of 6738687249 is 9427868376.

It is not a de Polignac number, because 6738687249 - 2⁴ = 6738687233 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6738687192 and 6738687201.

It is not an unprimeable number, because it can be changed into a prime (6738687209) 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 15 ways as a sum of consecutive naturals, for example, 1931329 + ... + 1934814.

It is an arithmetic number, because the mean of its divisors is an integer number (649512192).

Almost surely, 2^6738687249 is an apocalyptic number.

It is an amenable number.

6738687249 is a deficient number, since it is larger than the sum of its proper divisors (3653507823).

6738687249 is a wasteful number, since it uses less digits than its factorization.

6738687249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866236.

The product of its digits is 24385536, while the sum is 60.

The square root of 6738687249 is about 82089.5075451181. The cubic root of 6738687249 is about 1888.8251938692.

The spelling of 6738687249 in words is "six billion, seven hundred thirty-eight million, six hundred eighty-seven thousand, two hundred forty-nine".