13878739206768 has 40 divisors (see below), whose sum is σ = 35980100146048. Its totient is φ = 4609899237312.

The previous prime is 13878739206697. The next prime is 13878739206781. The reversal of 13878739206768 is 86760293787831.

It is a super-3 number, since 3×13878739206768³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13878739206768.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510835180 + ... + 510862347.

Almost surely, 2^{13878739206768} is an apocalyptic number.

It is an amenable number.

13878739206768 is an abundant number, since it is smaller than the sum of its proper divisors (22101360939280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13878739206768 is a wasteful number, since it uses less digits than its factorization.

13878739206768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021697821 (or 1021697815 counting only the distinct ones).

The product of its (nonzero) digits is 1024192512, while the sum is 75.

The spelling of 13878739206768 in words is "thirteen trillion, eight hundred seventy-eight billion, seven hundred thirty-nine million, two hundred six thousand, seven hundred sixty-eight".