6377779968 has 144 divisors (see below), whose sum is σ = 19645946880. Its totient is φ = 1799036928.

The previous prime is 6377779927. The next prime is 6377779979. The reversal of 6377779968 is 8699777736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417196 + ... + 432212.

Almost surely, 2^6377779968 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 6377779968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9822973440).

6377779968 is an abundant number, since it is smaller than the sum of its proper divisors (13268166912).

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

6377779968 is a wasteful number, since it uses less digits than its factorization.

6377779968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15122 (or 15108 counting only the distinct ones).

The product of its digits is 168031584, while the sum is 69.

The square root of 6377779968 is about 79861.0040507881. The cubic root of 6377779968 is about 1854.4843700687.

The spelling of 6377779968 in words is "six billion, three hundred seventy-seven million, seven hundred seventy-nine thousand, nine hundred sixty-eight".