68035645427 has 2 divisors, whose sum is σ = 68035645428. Its totient is φ = 68035645426.

The previous prime is 68035645411. The next prime is 68035645451. The reversal of 68035645427 is 72454653086.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68035645427 - 2⁴ = 68035645411 is a prime.

It is not a weakly prime, because it can be changed into another prime (68035645127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34017822713 + 34017822714.

It is an arithmetic number, because the mean of its divisors is an integer number (34017822714).

Almost surely, 2^68035645427 is an apocalyptic number.

68035645427 is a deficient number, since it is larger than the sum of its proper divisors (1).

68035645427 is an equidigital number, since it uses as much as digits as its factorization.

68035645427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 68035645427 in words is "sixty-eight billion, thirty-five million, six hundred forty-five thousand, four hundred twenty-seven".