68061588961 has 2 divisors, whose sum is σ = 68061588962. Its totient is φ = 68061588960.

The previous prime is 68061588953. The next prime is 68061589027. The reversal of 68061588961 is 16988516086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48728355025 + 19333233936 = 220745^2 + 139044^2 .

It is a cyclic number.

It is not a de Polignac number, because 68061588961 - 2³ = 68061588953 is a prime.

It is a super-2 number, since 2×68061588961² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68061588896 and 68061588905.

It is not a weakly prime, because it can be changed into another prime (68061588901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34030794480 + 34030794481.

It is an arithmetic number, because the mean of its divisors is an integer number (34030794481).

Almost surely, 2^68061588961 is an apocalyptic number.

It is an amenable number.

68061588961 is a deficient number, since it is larger than the sum of its proper divisors (1).

68061588961 is an equidigital number, since it uses as much as digits as its factorization.

68061588961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 58.

The spelling of 68061588961 in words is "sixty-eight billion, sixty-one million, five hundred eighty-eight thousand, nine hundred sixty-one".