122643703549 has 16 divisors (see below), whose sum is σ = 124560979200. Its totient is φ = 120739234176.

The previous prime is 122643703543. The next prime is 122643703577. The reversal of 122643703549 is 945307346221.

It is a cyclic number.

It is not a de Polignac number, because 122643703549 - 2⁹ = 122643703037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122643703499 and 122643703508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122643703543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48997432 + ... + 48999934.

It is an arithmetic number, because the mean of its divisors is an integer number (7785061200).

Almost surely, 2^122643703549 is an apocalyptic number.

It is an amenable number.

122643703549 is a deficient number, since it is larger than the sum of its proper divisors (1917275651).

122643703549 is a wasteful number, since it uses less digits than its factorization.

122643703549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 122643703549 in words is "one hundred twenty-two billion, six hundred forty-three million, seven hundred three thousand, five hundred forty-nine".