122506745482777 has 2 divisors, whose sum is σ = 122506745482778. Its totient is φ = 122506745482776.

The previous prime is 122506745482769. The next prime is 122506745482789. The reversal of 122506745482777 is 777284547605221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82275494101056 + 40231251381721 = 9070584^2 + 6342811^2 .

It is a cyclic number.

It is not a de Polignac number, because 122506745482777 - 2³ = 122506745482769 is a prime.

It is not a weakly prime, because it can be changed into another prime (122506745482727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61253372741388 + 61253372741389.

It is an arithmetic number, because the mean of its divisors is an integer number (61253372741389).

Almost surely, 2^{122506745482777} is an apocalyptic number.

It is an amenable number.

122506745482777 is a deficient number, since it is larger than the sum of its proper divisors (1).

122506745482777 is an equidigital number, since it uses as much as digits as its factorization.

122506745482777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368793600, while the sum is 67.

The spelling of 122506745482777 in words is "one hundred twenty-two trillion, five hundred six billion, seven hundred forty-five million, four hundred eighty-two thousand, seven hundred seventy-seven".