68454371453201 has 2 divisors, whose sum is σ = 68454371453202. Its totient is φ = 68454371453200.

The previous prime is 68454371453119. The next prime is 68454371453203. The reversal of 68454371453201 is 10235417345486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42655855011025 + 25798516442176 = 6531145^2 + 5079224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68454371453201 is a prime.

Together with 68454371453203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68454371453203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34227185726600 + 34227185726601.

It is an arithmetic number, because the mean of its divisors is an integer number (34227185726601).

Almost surely, 2^{68454371453201} is an apocalyptic number.

It is an amenable number.

68454371453201 is a deficient number, since it is larger than the sum of its proper divisors (1).

68454371453201 is an equidigital number, since it uses as much as digits as its factorization.

68454371453201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 53.

Adding to 68454371453201 its reverse (10235417345486), we get a palindrome (78689788798687).

The spelling of 68454371453201 in words is "sixty-eight trillion, four hundred fifty-four billion, three hundred seventy-one million, four hundred fifty-three thousand, two hundred one".