6779553097944 has 128 divisors (see below), whose sum is σ = 19125015183360. Its totient is φ = 1984088400000.

The previous prime is 6779553097939. The next prime is 6779553097991. The reversal of 6779553097944 is 4497903559776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3174769 + ... + 4861919.

It is an arithmetic number, because the mean of its divisors is an integer number (149414181120).

Almost surely, 2^{6779553097944} 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 6779553097944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9562507591680).

6779553097944 is an abundant number, since it is smaller than the sum of its proper divisors (12345462085416).

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

6779553097944 is a wasteful number, since it uses less digits than its factorization.

6779553097944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687693 (or 1687689 counting only the distinct ones).

The product of its (nonzero) digits is 1800338400, while the sum is 75.

The spelling of 6779553097944 in words is "six trillion, seven hundred seventy-nine billion, five hundred fifty-three million, ninety-seven thousand, nine hundred forty-four".