3878113547855 has 8 divisors (see below), whose sum is σ = 4653906894000. Its totient is φ = 3102377080576.

The previous prime is 3878113547851. The next prime is 3878113547887. The reversal of 3878113547855 is 5587453118783.

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 3878113547855 - 2² = 3878113547851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3878113547791 and 3878113547800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3878113547851) 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, 14069570 + ... + 14342559.

It is an arithmetic number, because the mean of its divisors is an integer number (581738361750).

Almost surely, 2^{3878113547855} is an apocalyptic number.

3878113547855 is a deficient number, since it is larger than the sum of its proper divisors (775793346145).

3878113547855 is a wasteful number, since it uses less digits than its factorization.

3878113547855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28439433.

The product of its digits is 112896000, while the sum is 65.

The spelling of 3878113547855 in words is "three trillion, eight hundred seventy-eight billion, one hundred thirteen million, five hundred forty-seven thousand, eight hundred fifty-five".