122832478649 has 2 divisors, whose sum is σ = 122832478650. Its totient is φ = 122832478648.

The previous prime is 122832478631. The next prime is 122832478687. The reversal of 122832478649 is 946874238221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90861250624 + 31971228025 = 301432^2 + 178805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122832478649 is a prime.

It is a super-2 number, since 2×122832478649² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122832478594 and 122832478603.

It is not a weakly prime, because it can be changed into another prime (122832471649) 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, 61416239324 + 61416239325.

It is an arithmetic number, because the mean of its divisors is an integer number (61416239325).

Almost surely, 2^122832478649 is an apocalyptic number.

It is an amenable number.

122832478649 is a deficient number, since it is larger than the sum of its proper divisors (1).

122832478649 is an equidigital number, since it uses as much as digits as its factorization.

122832478649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9289728, while the sum is 56.

The spelling of 122832478649 in words is "one hundred twenty-two billion, eight hundred thirty-two million, four hundred seventy-eight thousand, six hundred forty-nine".