68676619788 has 144 divisors (see below), whose sum is σ = 211998346560. Its totient is φ = 18298109952.

The previous prime is 68676619769. The next prime is 68676619829. The reversal of 68676619788 is 88791667686.

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, 393420 + ... + 540492.

It is an arithmetic number, because the mean of its divisors is an integer number (1472210740).

Almost surely, 2^68676619788 is an apocalyptic number.

68676619788 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 68676619788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105999173280).

68676619788 is an abundant number, since it is smaller than the sum of its proper divisors (143321726772).

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

68676619788 is a wasteful number, since it uses less digits than its factorization.

68676619788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147216 (or 147211 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The spelling of 68676619788 in words is "sixty-eight billion, six hundred seventy-six million, six hundred nineteen thousand, seven hundred eighty-eight".