6779744068608 has 528 divisors, whose sum is σ = 24453330729984. Its totient is φ = 1764305141760.

The previous prime is 6779744068579. The next prime is 6779744068613. The reversal of 6779744068608 is 8068604479776.

It is a happy number.

6779744068608 is a `hidden beast` number, since 6 + 7 + 7 + 9 + 7 + 4 + 4 + 0 + 6 + 8 + 608 = 666.

It is a super-2 number, since 2×6779744068608² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33898116 + ... + 34097532.

Almost surely, 2^{6779744068608} is an apocalyptic number.

6779744068608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6779744068608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12226665364992).

6779744068608 is an abundant number, since it is smaller than the sum of its proper divisors (17673586661376).

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

6779744068608 is a wasteful number, since it uses less digits than its factorization.

6779744068608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199498 (or 199477 counting only the distinct ones).

The product of its (nonzero) digits is 682795008, while the sum is 72.

The spelling of 6779744068608 in words is "six trillion, seven hundred seventy-nine billion, seven hundred forty-four million, sixty-eight thousand, six hundred eight".