6778103871 has 48 divisors (see below), whose sum is σ = 11891881728. Its totient is φ = 3335731200.

The previous prime is 6778103867. The next prime is 6778103873. The reversal of 6778103871 is 1783018776.

It is not a de Polignac number, because 6778103871 - 2² = 6778103867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6778103871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778103873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42751 + ... + 124031.

It is an arithmetic number, because the mean of its divisors is an integer number (247747536).

Almost surely, 2^6778103871 is an apocalyptic number.

6778103871 is a deficient number, since it is larger than the sum of its proper divisors (5113777857).

6778103871 is a wasteful number, since it uses less digits than its factorization.

6778103871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81340 (or 81321 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 6778103871 is about 82329.2406803318. The cubic root of 6778103871 is about 1892.5008067137.

The spelling of 6778103871 in words is "six billion, seven hundred seventy-eight million, one hundred three thousand, eight hundred seventy-one".