1838739923717 has 8 divisors (see below), whose sum is σ = 1839388088160. Its totient is φ = 1838091855600.

The previous prime is 1838739923701. The next prime is 1838739923803. The reversal of 1838739923717 is 7173299378381.

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 1838739923717 - 2⁴ = 1838739923701 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 (1838739923017) 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, 71203634 + ... + 71229452.

It is an arithmetic number, because the mean of its divisors is an integer number (229923511020).

Almost surely, 2^{1838739923717} is an apocalyptic number.

It is an amenable number.

1838739923717 is a deficient number, since it is larger than the sum of its proper divisors (648164443).

1838739923717 is a wasteful number, since it uses less digits than its factorization.

1838739923717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48163.

The product of its digits is 96018048, while the sum is 68.

The spelling of 1838739923717 in words is "one trillion, eight hundred thirty-eight billion, seven hundred thirty-nine million, nine hundred twenty-three thousand, seven hundred seventeen".