68042200801 has 3 divisors (see below), whose sum is σ = 68042461651. Its totient is φ = 68041939952.

The previous prime is 68042200789. The next prime is 68042200841. The reversal of 68042200801 is 10800224086.

The square root of 68042200801 is 260849.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 23470546401 + 44571654400 = 153201^2 + 211120^2 .

It is not a de Polignac number, because 68042200801 - 2¹⁷ = 68042069729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68042200841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 130425 + ... + 391273.

Almost surely, 2^68042200801 is an apocalyptic number.

68042200801 is the 260849-th square number.

68042200801 is the 130425-th centered octagonal number.

It is an amenable number.

68042200801 is a deficient number, since it is larger than the sum of its proper divisors (260850).

68042200801 is an frugal number, since it uses more digits than its factorization.

68042200801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521698 (or 260849 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

Adding to 68042200801 its reverse (10800224086), we get a palindrome (78842424887).

The spelling of 68042200801 in words is "sixty-eight billion, forty-two million, two hundred thousand, eight hundred one".