68650365961 has 2 divisors, whose sum is σ = 68650365962. Its totient is φ = 68650365960.

The previous prime is 68650365947. The next prime is 68650365967. The reversal of 68650365961 is 16956305686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68634044361 + 16321600 = 261981^2 + 4040^2 .

It is a cyclic number.

It is not a de Polignac number, because 68650365961 - 2³⁵ = 34290627593 is a prime.

It is not a weakly prime, because it can be changed into another prime (68650365967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34325182980 + 34325182981.

It is an arithmetic number, because the mean of its divisors is an integer number (34325182981).

Almost surely, 2^68650365961 is an apocalyptic number.

It is an amenable number.

68650365961 is a deficient number, since it is larger than the sum of its proper divisors (1).

68650365961 is an equidigital number, since it uses as much as digits as its factorization.

68650365961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 68650365961 in words is "sixty-eight billion, six hundred fifty million, three hundred sixty-five thousand, nine hundred sixty-one".