122848147809 has 6 divisors (see below), whose sum is σ = 177447324626. Its totient is φ = 81898765200.

The previous prime is 122848147801. The next prime is 122848147811. The reversal of 122848147809 is 908741848221.

122848147809 is a `hidden beast` number, since 12 + 2 + 84 + 81 + 478 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 82659125025 + 40189022784 = 287505^2 + 200472^2 .

It is not a de Polignac number, because 122848147809 - 2³ = 122848147801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122848147801) 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 in 5 ways as a sum of consecutive naturals, for example, 6824897092 + ... + 6824897109.

Almost surely, 2^122848147809 is an apocalyptic number.

It is an amenable number.

122848147809 is a deficient number, since it is larger than the sum of its proper divisors (54599176817).

122848147809 is a wasteful number, since it uses less digits than its factorization.

122848147809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13649794207 (or 13649794204 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 122848147809 in words is "one hundred twenty-two billion, eight hundred forty-eight million, one hundred forty-seven thousand, eight hundred nine".