122147436679 has 2 divisors, whose sum is σ = 122147436680. Its totient is φ = 122147436678.

The previous prime is 122147436659. The next prime is 122147436731. The reversal of 122147436679 is 976634741221.

It is a happy number.

It is an a-pointer prime, because the next prime (122147436731) can be obtained adding 122147436679 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122147436679 - 2⁵ = 122147436647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122147436659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61073718339 + 61073718340.

It is an arithmetic number, because the mean of its divisors is an integer number (61073718340).

Almost surely, 2^122147436679 is an apocalyptic number.

122147436679 is a deficient number, since it is larger than the sum of its proper divisors (1).

122147436679 is an equidigital number, since it uses as much as digits as its factorization.

122147436679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 52.

The spelling of 122147436679 in words is "one hundred twenty-two billion, one hundred forty-seven million, four hundred thirty-six thousand, six hundred seventy-nine".