6778889511729 has 32 divisors (see below), whose sum is σ = 9239132160000. Its totient is φ = 4419533926080.

The previous prime is 6778889511703. The next prime is 6778889511749. The reversal of 6778889511729 is 9271159888776.

It is not a de Polignac number, because 6778889511729 - 2²⁷ = 6778755294001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6778889511749) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60040672 + ... + 60153470.

It is an arithmetic number, because the mean of its divisors is an integer number (288722880000).

Almost surely, 2^{6778889511729} is an apocalyptic number.

It is an amenable number.

6778889511729 is a deficient number, since it is larger than the sum of its proper divisors (2460242648271).

6778889511729 is a wasteful number, since it uses less digits than its factorization.

6778889511729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114085.

The product of its digits is 853493760, while the sum is 78.

The spelling of 6778889511729 in words is "six trillion, seven hundred seventy-eight billion, eight hundred eighty-nine million, five hundred eleven thousand, seven hundred twenty-nine".