67112601779 has 2 divisors, whose sum is σ = 67112601780. Its totient is φ = 67112601778.

The previous prime is 67112601719. The next prime is 67112601791. The reversal of 67112601779 is 97710621176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67112601779 - 2¹⁶ = 67112536243 is a prime.

It is not a weakly prime, because it can be changed into another prime (67112601719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33556300889 + 33556300890.

It is an arithmetic number, because the mean of its divisors is an integer number (33556300890).

Almost surely, 2^67112601779 is an apocalyptic number.

67112601779 is a deficient number, since it is larger than the sum of its proper divisors (1).

67112601779 is an equidigital number, since it uses as much as digits as its factorization.

67112601779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 47.

The spelling of 67112601779 in words is "sixty-seven billion, one hundred twelve million, six hundred one thousand, seven hundred seventy-nine".