68406789611 has 2 divisors, whose sum is σ = 68406789612. Its totient is φ = 68406789610.

The previous prime is 68406789601. The next prime is 68406789643. The reversal of 68406789611 is 11698760486.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68406789611 is a prime.

It is not a weakly prime, because it can be changed into another prime (68406789601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34203394805 + 34203394806.

It is an arithmetic number, because the mean of its divisors is an integer number (34203394806).

Almost surely, 2^68406789611 is an apocalyptic number.

68406789611 is a deficient number, since it is larger than the sum of its proper divisors (1).

68406789611 is an equidigital number, since it uses as much as digits as its factorization.

68406789611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 68406789611 in words is "sixty-eight billion, four hundred six million, seven hundred eighty-nine thousand, six hundred eleven".