122777665627 has 2 divisors, whose sum is σ = 122777665628. Its totient is φ = 122777665626.

The previous prime is 122777665601. The next prime is 122777665631. The reversal of 122777665627 is 726566777221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122777665627 - 2³¹ = 120630181979 is a prime.

It is not a weakly prime, because it can be changed into another prime (122777665697) 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, 61388832813 + 61388832814.

It is an arithmetic number, because the mean of its divisors is an integer number (61388832814).

Almost surely, 2^122777665627 is an apocalyptic number.

122777665627 is a deficient number, since it is larger than the sum of its proper divisors (1).

122777665627 is an equidigital number, since it uses as much as digits as its factorization.

122777665627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20744640, while the sum is 58.

The spelling of 122777665627 in words is "one hundred twenty-two billion, seven hundred seventy-seven million, six hundred sixty-five thousand, six hundred twenty-seven".