13888340787439 has 8 divisors (see below), whose sum is σ = 13962794642640. Its totient is φ = 13814045177856.

The previous prime is 13888340787437. The next prime is 13888340787463. The reversal of 13888340787439 is 93478704388831.

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 13888340787439 - 2¹ = 13888340787437 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 (13888340787437) 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, 39385404 + ... + 39736465.

It is an arithmetic number, because the mean of its divisors is an integer number (1745349330330).

Almost surely, 2^{13888340787439} is an apocalyptic number.

13888340787439 is a deficient number, since it is larger than the sum of its proper divisors (74453855201).

13888340787439 is an equidigital number, since it uses as much as digits as its factorization.

13888340787439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79122809.

The product of its (nonzero) digits is 780337152, while the sum is 73.

The spelling of 13888340787439 in words is "thirteen trillion, eight hundred eighty-eight billion, three hundred forty million, seven hundred eighty-seven thousand, four hundred thirty-nine".