68496929791 has 2 divisors, whose sum is σ = 68496929792. Its totient is φ = 68496929790.

The previous prime is 68496929689. The next prime is 68496929819. The reversal of 68496929791 is 19792969486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68496929791 - 2¹⁷ = 68496798719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68496929791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68496909791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34248464895 + 34248464896.

It is an arithmetic number, because the mean of its divisors is an integer number (34248464896).

Almost surely, 2^68496929791 is an apocalyptic number.

68496929791 is a deficient number, since it is larger than the sum of its proper divisors (1).

68496929791 is an equidigital number, since it uses as much as digits as its factorization.

68496929791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105815808, while the sum is 70.

The spelling of 68496929791 in words is "sixty-eight billion, four hundred ninety-six million, nine hundred twenty-nine thousand, seven hundred ninety-one".