38113775717 has 4 divisors (see below), whose sum is σ = 38125283340. Its totient is φ = 38102268096.

The previous prime is 38113775681. The next prime is 38113775773. The reversal of 38113775717 is 71757731183.

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 26165974081 + 11947801636 = 161759^2 + 109306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38113775717 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 (38113775017) 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, 5748842 + ... + 5755467.

It is an arithmetic number, because the mean of its divisors is an integer number (9531320835).

Almost surely, 2^38113775717 is an apocalyptic number.

It is an amenable number.

38113775717 is a deficient number, since it is larger than the sum of its proper divisors (11507623).

38113775717 is a wasteful number, since it uses less digits than its factorization.

38113775717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507622.

The product of its digits is 864360, while the sum is 50.

The spelling of 38113775717 in words is "thirty-eight billion, one hundred thirteen million, seven hundred seventy-five thousand, seven hundred seventeen".