6778470677 has 8 divisors (see below), whose sum is σ = 7470930432. Its totient is φ = 6098716800.

The previous prime is 6778470661. The next prime is 6778470683. The reversal of 6778470677 is 7760748776.

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 6778470677 - 2⁴ = 6778470661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778475677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3175349 + ... + 3177482.

It is an arithmetic number, because the mean of its divisors is an integer number (933866304).

Almost surely, 2^6778470677 is an apocalyptic number.

It is an amenable number.

6778470677 is a deficient number, since it is larger than the sum of its proper divisors (692459755).

6778470677 is a wasteful number, since it uses less digits than its factorization.

6778470677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352939.

The product of its (nonzero) digits is 19361664, while the sum is 59.

The square root of 6778470677 is about 82331.4683277300. The cubic root of 6778470677 is about 1892.5349444874.

The spelling of 6778470677 in words is "six billion, seven hundred seventy-eight million, four hundred seventy thousand, six hundred seventy-seven".