6778369752 has 128 divisors (see below), whose sum is σ = 21856089600. Its totient is φ = 1699891200.

The previous prime is 6778369739. The next prime is 6778369753. The reversal of 6778369752 is 2579638776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778369753) 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, 9649 + ... + 116832.

It is an arithmetic number, because the mean of its divisors is an integer number (170750700).

Almost surely, 2^6778369752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6778369752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10928044800).

6778369752 is an abundant number, since it is smaller than the sum of its proper divisors (15077719848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6778369752 is a wasteful number, since it uses less digits than its factorization.

6778369752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126537 (or 126533 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 60.

The square root of 6778369752 is about 82330.8554067064. The cubic root of 6778369752 is about 1892.5255517573.

The spelling of 6778369752 in words is "six billion, seven hundred seventy-eight million, three hundred sixty-nine thousand, seven hundred fifty-two".