70768128727 has 2 divisors, whose sum is σ = 70768128728. Its totient is φ = 70768128726.

The previous prime is 70768128719. The next prime is 70768128763. The reversal of 70768128727 is 72782186707.

It is a weak prime.

It is an emirp because it is prime and its reverse (72782186707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70768128727 - 2³ = 70768128719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70768122727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35384064363 + 35384064364.

It is an arithmetic number, because the mean of its divisors is an integer number (35384064364).

Almost surely, 2^70768128727 is an apocalyptic number.

70768128727 is a deficient number, since it is larger than the sum of its proper divisors (1).

70768128727 is an equidigital number, since it uses as much as digits as its factorization.

70768128727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3687936, while the sum is 55.

The spelling of 70768128727 in words is "seventy billion, seven hundred sixty-eight million, one hundred twenty-eight thousand, seven hundred twenty-seven".