68769221033 has 2 divisors, whose sum is σ = 68769221034. Its totient is φ = 68769221032.

The previous prime is 68769220999. The next prime is 68769221047. The reversal of 68769221033 is 33012296786.

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., 66789682969 + 1979538064 = 258437^2 + 44492^2 .

It is a cyclic number.

It is not a de Polignac number, because 68769221033 - 2²⁶ = 68702112169 is a prime.

It is a super-2 number, since 2×68769221033² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68769221233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34384610516 + 34384610517.

It is an arithmetic number, because the mean of its divisors is an integer number (34384610517).

Almost surely, 2^68769221033 is an apocalyptic number.

It is an amenable number.

68769221033 is a deficient number, since it is larger than the sum of its proper divisors (1).

68769221033 is an equidigital number, since it uses as much as digits as its factorization.

68769221033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 68769221033 in words is "sixty-eight billion, seven hundred sixty-nine million, two hundred twenty-one thousand, thirty-three".