122745356719 has 2 divisors, whose sum is σ = 122745356720. Its totient is φ = 122745356718.

The previous prime is 122745356687. The next prime is 122745356759. The reversal of 122745356719 is 917653547221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122745356719 - 2⁵ = 122745356687 is a prime.

It is a super-2 number, since 2×122745356719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122745356759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61372678359 + 61372678360.

It is an arithmetic number, because the mean of its divisors is an integer number (61372678360).

Almost surely, 2^122745356719 is an apocalyptic number.

122745356719 is a deficient number, since it is larger than the sum of its proper divisors (1).

122745356719 is an equidigital number, since it uses as much as digits as its factorization.

122745356719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 52.

The spelling of 122745356719 in words is "one hundred twenty-two billion, seven hundred forty-five million, three hundred fifty-six thousand, seven hundred nineteen".