68964015751 has 2 divisors, whose sum is σ = 68964015752. Its totient is φ = 68964015750.

The previous prime is 68964015733. The next prime is 68964015793. The reversal of 68964015751 is 15751046986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68964015751 - 2⁷ = 68964015623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68964715751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34482007875 + 34482007876.

It is an arithmetic number, because the mean of its divisors is an integer number (34482007876).

Almost surely, 2^68964015751 is an apocalyptic number.

68964015751 is a deficient number, since it is larger than the sum of its proper divisors (1).

68964015751 is an equidigital number, since it uses as much as digits as its factorization.

68964015751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 68964015751 in words is "sixty-eight billion, nine hundred sixty-four million, fifteen thousand, seven hundred fifty-one".