67721608910596 has 27 divisors (see below), whose sum is σ = 118646639325151. Its totient is φ = 33822612209024.

The previous prime is 67721608910569. The next prime is 67721608910603. The reversal of 67721608910596 is 69501980612776.

The square root of 67721608910596 is 8229314.

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

It can be written as a sum of positive squares in 4 ways, for example, as 28072724656900 + 39648884253696 = 5298370^2 + 6296736^2 .

It is a super-3 number, since 3×67721608910596³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19635141480 + ... + 19635144928.

Almost surely, 2^{67721608910596} is an apocalyptic number.

67721608910596 is the 8229314-th square number.

It is an amenable number.

67721608910596 is a deficient number, since it is larger than the sum of its proper divisors (50925030414555).

67721608910596 is an frugal number, since it uses more digits than its factorization.

67721608910596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9288 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 67.

The spelling of 67721608910596 in words is "sixty-seven trillion, seven hundred twenty-one billion, six hundred eight million, nine hundred ten thousand, five hundred ninety-six".