4117918397 has 4 divisors (see below), whose sum is σ = 4131973020. Its totient is φ = 4103863776.

The previous prime is 4117918379. The next prime is 4117918403. The reversal of 4117918397 is 7938197114.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3895132921 + 222785476 = 62411^2 + 14926^2 .

It is a cyclic number.

It is not a de Polignac number, because 4117918397 - 2⁸ = 4117918141 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 (4117918327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7026872 + ... + 7027457.

It is an arithmetic number, because the mean of its divisors is an integer number (1032993255).

Almost surely, 2^4117918397 is an apocalyptic number.

It is an amenable number.

4117918397 is a deficient number, since it is larger than the sum of its proper divisors (14054623).

4117918397 is a wasteful number, since it uses less digits than its factorization.

4117918397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14054622.

The product of its digits is 381024, while the sum is 50.

The square root of 4117918397 is about 64171.0090071833. The cubic root of 4117918397 is about 1602.8488823504.

The spelling of 4117918397 in words is "four billion, one hundred seventeen million, nine hundred eighteen thousand, three hundred ninety-seven".