68828958727684 has 9 divisors (see below), whose sum is σ = 120450706810581. Its totient is φ = 34414471067520.

The previous prime is 68828958727673. The next prime is 68828958727691. The reversal of 68828958727684 is 48672785982886.

The square root of 68828958727684 is 8296322.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 55719924718084 + 13109034009600 = 7464578^2 + 3620640^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68828958727595 and 68828958727604.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14518564 + ... + 18666724.

Almost surely, 2^{68828958727684} is an apocalyptic number.

68828958727684 is the 8296322-nd square number.

It is an amenable number.

68828958727684 is a deficient number, since it is larger than the sum of its proper divisors (51621748082897).

68828958727684 is an frugal number, since it uses more digits than its factorization.

68828958727684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296326 (or 4148163 counting only the distinct ones).

The product of its digits is 41617981440, while the sum is 88.

The spelling of 68828958727684 in words is "sixty-eight trillion, eight hundred twenty-eight billion, nine hundred fifty-eight million, seven hundred twenty-seven thousand, six hundred eighty-four".