68043244201 has 9 divisors (see below), whose sum is σ = 71818184151. Its totient is φ = 64457325504.

The previous prime is 68043244193. The next prime is 68043244207. The reversal of 68043244201 is 10244234086.

The square root of 68043244201 is 260851.

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., 24995293801 + 43047950400 = 158099^2 + 207480^2 .

It is not a de Polignac number, because 68043244201 - 2³ = 68043244193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68043244207) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4949305 + ... + 4963033.

It is an arithmetic number, because the mean of its divisors is an integer number (7979798239).

Almost surely, 2^68043244201 is an apocalyptic number.

68043244201 is the 260851-st square number.

68043244201 is the 130426-th centered octagonal number.

It is an amenable number.

68043244201 is a deficient number, since it is larger than the sum of its proper divisors (3774939950).

68043244201 is an frugal number, since it uses more digits than its factorization.

68043244201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27496 (or 13748 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 68043244201 its reverse (10244234086), we get a palindrome (78287478287).

The spelling of 68043244201 in words is "sixty-eight billion, forty-three million, two hundred forty-four thousand, two hundred one".