1438075717117 has 16 divisors (see below), whose sum is σ = 1621194720768. Its totient is φ = 1265682337920.

The previous prime is 1438075717109. The next prime is 1438075717193. The reversal of 1438075717117 is 7117175708341.

It is not a de Polignac number, because 1438075717117 - 2³ = 1438075717109 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 (1438075717717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7589509 + ... + 7776682.

It is an arithmetic number, because the mean of its divisors is an integer number (101324670048).

Almost surely, 2^{1438075717117} is an apocalyptic number.

It is an amenable number.

1438075717117 is a deficient number, since it is larger than the sum of its proper divisors (183119003651).

1438075717117 is a wasteful number, since it uses less digits than its factorization.

1438075717117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15366540.

The product of its (nonzero) digits is 1152480, while the sum is 52.

The spelling of 1438075717117 in words is "one trillion, four hundred thirty-eight billion, seventy-five million, seven hundred seventeen thousand, one hundred seventeen".