120968778769 has 2 divisors, whose sum is σ = 120968778770. Its totient is φ = 120968778768.

The previous prime is 120968778757. The next prime is 120968778793. The reversal of 120968778769 is 967877869021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77277328144 + 43691450625 = 277988^2 + 209025^2 .

It is a cyclic number.

It is not a de Polignac number, because 120968778769 - 2¹⁷ = 120968647697 is a prime.

It is a super-2 number, since 2×120968778769² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120968778698 and 120968778707.

It is not a weakly prime, because it can be changed into another prime (120968778569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60484389384 + 60484389385.

It is an arithmetic number, because the mean of its divisors is an integer number (60484389385).

Almost surely, 2^120968778769 is an apocalyptic number.

It is an amenable number.

120968778769 is a deficient number, since it is larger than the sum of its proper divisors (1).

120968778769 is an equidigital number, since it uses as much as digits as its factorization.

120968778769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 70.

The spelling of 120968778769 in words is "one hundred twenty billion, nine hundred sixty-eight million, seven hundred seventy-eight thousand, seven hundred sixty-nine".