122557436767 has 2 divisors, whose sum is σ = 122557436768. Its totient is φ = 122557436766.

The previous prime is 122557436717. The next prime is 122557436777. The reversal of 122557436767 is 767634755221.

It is a strong prime.

It is an emirp because it is prime and its reverse (767634755221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122557436767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122557436717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61278718383 + 61278718384.

It is an arithmetic number, because the mean of its divisors is an integer number (61278718384).

Almost surely, 2^122557436767 is an apocalyptic number.

122557436767 is a deficient number, since it is larger than the sum of its proper divisors (1).

122557436767 is an equidigital number, since it uses as much as digits as its factorization.

122557436767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14817600, while the sum is 55.

The spelling of 122557436767 in words is "one hundred twenty-two billion, five hundred fifty-seven million, four hundred thirty-six thousand, seven hundred sixty-seven".