68411730197 has 8 divisors (see below), whose sum is σ = 71223173976. Its totient is φ = 65650943232.

The previous prime is 68411730181. The next prime is 68411730227. The reversal of 68411730197 is 79103711486.

It can be written as a sum of positive squares in 4 ways, for example, as 26255017156 + 42156713041 = 162034^2 + 205321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68411730197 - 2⁴ = 68411730181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68411730697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12661448 + ... + 12666849.

It is an arithmetic number, because the mean of its divisors is an integer number (8902896747).

Almost surely, 2^68411730197 is an apocalyptic number.

It is an amenable number.

68411730197 is a deficient number, since it is larger than the sum of its proper divisors (2811443779).

68411730197 is a wasteful number, since it uses less digits than its factorization.

68411730197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25328407.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 68411730197 in words is "sixty-eight billion, four hundred eleven million, seven hundred thirty thousand, one hundred ninety-seven".