4139256917 has 8 divisors (see below), whose sum is σ = 4391464896. Its totient is φ = 3888018112.

The previous prime is 4139256907. The next prime is 4139256929. The reversal of 4139256917 is 7196529314.

4139256917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4139256917 - 2¹⁰ = 4139255893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4139256907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233483 + ... + 250584.

It is an arithmetic number, because the mean of its divisors is an integer number (548933112).

Almost surely, 2^4139256917 is an apocalyptic number.

It is an amenable number.

4139256917 is a deficient number, since it is larger than the sum of its proper divisors (252207979).

4139256917 is a wasteful number, since it uses less digits than its factorization.

4139256917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484587.

The product of its digits is 408240, while the sum is 47.

The square root of 4139256917 is about 64337.0571055282. The cubic root of 4139256917 is about 1605.6126990510.

The spelling of 4139256917 in words is "four billion, one hundred thirty-nine million, two hundred fifty-six thousand, nine hundred seventeen".