4138693865519 has 8 divisors (see below), whose sum is σ = 4178908050240. Its totient is φ = 4098520490400.

The previous prime is 4138693865513. The next prime is 4138693865531. The reversal of 4138693865519 is 9155683968314.

4138693865519 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 4138693865519 - 2²⁸ = 4138425430063 is a prime.

It is a super-2 number, since 2×4138693865519² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138693865513) 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, 9998567 + ... + 10404264.

It is an arithmetic number, because the mean of its divisors is an integer number (522363506280).

Almost surely, 2^{4138693865519} is an apocalyptic number.

4138693865519 is a deficient number, since it is larger than the sum of its proper divisors (40214184721).

4138693865519 is a wasteful number, since it uses less digits than its factorization.

4138693865519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20404801.

The product of its digits is 167961600, while the sum is 68.

The spelling of 4138693865519 in words is "four trillion, one hundred thirty-eight billion, six hundred ninety-three million, eight hundred sixty-five thousand, five hundred nineteen".