6779178385449 has 32 divisors (see below), whose sum is σ = 9250946140800. Its totient is φ = 4414706841600.

The previous prime is 6779178385417. The next prime is 6779178385457. The reversal of 6779178385449 is 9445838719776.

It is not a de Polignac number, because 6779178385449 - 2⁵ = 6779178385417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6779178385409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12430009 + ... + 12963929.

It is an arithmetic number, because the mean of its divisors is an integer number (289092066900).

Almost surely, 2^{6779178385449} is an apocalyptic number.

It is an amenable number.

6779178385449 is a deficient number, since it is larger than the sum of its proper divisors (2471767755351).

6779178385449 is a wasteful number, since it uses less digits than its factorization.

6779178385449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534521.

The product of its digits is 2560481280, while the sum is 78.

The spelling of 6779178385449 in words is "six trillion, seven hundred seventy-nine billion, one hundred seventy-eight million, three hundred eighty-five thousand, four hundred forty-nine".