13855565896687 has 8 divisors (see below), whose sum is σ = 13932311945552. Its totient is φ = 13778822001600.

The previous prime is 13855565896681. The next prime is 13855565896691. The reversal of 13855565896687 is 78669856555831.

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 13855565896687 - 2⁷ = 13855565896559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13855565896687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13855565896681) 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, 13353112 + ... + 14353282.

It is an arithmetic number, because the mean of its divisors is an integer number (1741538993194).

Almost surely, 2^{13855565896687} is an apocalyptic number.

13855565896687 is a deficient number, since it is larger than the sum of its proper divisors (76746048865).

13855565896687 is a wasteful number, since it uses less digits than its factorization.

13855565896687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076889.

The product of its digits is 13063680000, while the sum is 82.

The spelling of 13855565896687 in words is "thirteen trillion, eight hundred fifty-five billion, five hundred sixty-five million, eight hundred ninety-six thousand, six hundred eighty-seven".