768427656208 has 80 divisors (see below), whose sum is σ = 1564999833600. Its totient is φ = 364805990912.

The previous prime is 768427656121. The next prime is 768427656211. The reversal of 768427656208 is 802656724867.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108179985 + ... + 108187087.

It is an arithmetic number, because the mean of its divisors is an integer number (19562497920).

Almost surely, 2^768427656208 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 768427656208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782499916800).

768427656208 is an abundant number, since it is smaller than the sum of its proper divisors (796572177392).

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

768427656208 is a wasteful number, since it uses less digits than its factorization.

768427656208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9256 (or 9250 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 768427656208 in words is "seven hundred sixty-eight billion, four hundred twenty-seven million, six hundred fifty-six thousand, two hundred eight".