68031467869 has 2 divisors, whose sum is σ = 68031467870. Its totient is φ = 68031467868.

The previous prime is 68031467843. The next prime is 68031467873. The reversal of 68031467869 is 96876413086.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67386968100 + 644499769 = 259590^2 + 25387^2 .

It is a cyclic number.

It is not a de Polignac number, because 68031467869 - 2¹³ = 68031459677 is a prime.

It is a super-2 number, since 2×68031467869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68031467839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34015733934 + 34015733935.

It is an arithmetic number, because the mean of its divisors is an integer number (34015733935).

Almost surely, 2^68031467869 is an apocalyptic number.

It is an amenable number.

68031467869 is a deficient number, since it is larger than the sum of its proper divisors (1).

68031467869 is an equidigital number, since it uses as much as digits as its factorization.

68031467869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 68031467869 in words is "sixty-eight billion, thirty-one million, four hundred sixty-seven thousand, eight hundred sixty-nine".