6778385299627 has 4 divisors (see below), whose sum is σ = 7135142420680. Its totient is φ = 6421628178576.

The previous prime is 6778385299607. The next prime is 6778385299633. The reversal of 6778385299627 is 7269925838776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6778385299627 - 2¹⁹ = 6778384775339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6778385299607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178378560498 + ... + 178378560535.

It is an arithmetic number, because the mean of its divisors is an integer number (1783785605170).

Almost surely, 2^{6778385299627} is an apocalyptic number.

6778385299627 is a deficient number, since it is larger than the sum of its proper divisors (356757121053).

6778385299627 is a wasteful number, since it uses less digits than its factorization.

6778385299627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356757121052.

The product of its digits is 3840721920, while the sum is 79.

The spelling of 6778385299627 in words is "six trillion, seven hundred seventy-eight billion, three hundred eighty-five million, two hundred ninety-nine thousand, six hundred twenty-seven".