6778137444171 has 8 divisors (see below), whose sum is σ = 9513175360320. Its totient is φ = 4280928912072.

The previous prime is 6778137444109. The next prime is 6778137444181. The reversal of 6778137444171 is 1714447318776.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6778137444171 - 2¹¹ = 6778137442123 is a prime.

It is a super-2 number, since 2×6778137444171² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6778137444181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59457345945 + ... + 59457346058.

It is an arithmetic number, because the mean of its divisors is an integer number (1189146920040).

Almost surely, 2^{6778137444171} is an apocalyptic number.

6778137444171 is a deficient number, since it is larger than the sum of its proper divisors (2735037916149).

6778137444171 is a wasteful number, since it uses less digits than its factorization.

6778137444171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118914692025.

The product of its digits is 22127616, while the sum is 60.

The spelling of 6778137444171 in words is "six trillion, seven hundred seventy-eight billion, one hundred thirty-seven million, four hundred forty-four thousand, one hundred seventy-one".