68004343457 has 2 divisors, whose sum is σ = 68004343458. Its totient is φ = 68004343456.

The previous prime is 68004343441. The next prime is 68004343489. The reversal of 68004343457 is 75434340086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59518433296 + 8485910161 = 243964^2 + 92119^2 .

It is a cyclic number.

It is not a de Polignac number, because 68004343457 - 2⁴ = 68004343441 is a prime.

It is not a weakly prime, because it can be changed into another prime (68004343427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34002171728 + 34002171729.

It is an arithmetic number, because the mean of its divisors is an integer number (34002171729).

Almost surely, 2^68004343457 is an apocalyptic number.

It is an amenable number.

68004343457 is a deficient number, since it is larger than the sum of its proper divisors (1).

68004343457 is an equidigital number, since it uses as much as digits as its factorization.

68004343457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 68004343457 in words is "sixty-eight billion, four million, three hundred forty-three thousand, four hundred fifty-seven".