68883759691 has 2 divisors, whose sum is σ = 68883759692. Its totient is φ = 68883759690.

The previous prime is 68883759677. The next prime is 68883759713. The reversal of 68883759691 is 19695738886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68883759691 - 2⁷ = 68883759563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68883759691.

It is not a weakly prime, because it can be changed into another prime (68883759611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34441879845 + 34441879846.

It is an arithmetic number, because the mean of its divisors is an integer number (34441879846).

Almost surely, 2^68883759691 is an apocalyptic number.

68883759691 is a deficient number, since it is larger than the sum of its proper divisors (1).

68883759691 is an equidigital number, since it uses as much as digits as its factorization.

68883759691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 70.

The spelling of 68883759691 in words is "sixty-eight billion, eight hundred eighty-three million, seven hundred fifty-nine thousand, six hundred ninety-one".