68935325647 has 2 divisors, whose sum is σ = 68935325648. Its totient is φ = 68935325646.

The previous prime is 68935325603. The next prime is 68935325651. The reversal of 68935325647 is 74652353986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68935325647 - 2³⁵ = 34575587279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68935325591 and 68935325600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68935325447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34467662823 + 34467662824.

It is an arithmetic number, because the mean of its divisors is an integer number (34467662824).

Almost surely, 2^68935325647 is an apocalyptic number.

68935325647 is a deficient number, since it is larger than the sum of its proper divisors (1).

68935325647 is an equidigital number, since it uses as much as digits as its factorization.

68935325647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 58.

The spelling of 68935325647 in words is "sixty-eight billion, nine hundred thirty-five million, three hundred twenty-five thousand, six hundred forty-seven".