122509888644 has 96 divisors (see below), whose sum is σ = 353506728960. Its totient is φ = 32464886400.

The previous prime is 122509888643. The next prime is 122509888661. The reversal of 122509888644 is 446888905221.

122509888644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (122509888643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1846152 + ... + 1911359.

It is an arithmetic number, because the mean of its divisors is an integer number (3682361760).

Almost surely, 2^122509888644 is an apocalyptic number.

It is an amenable number.

122509888644 is an abundant number, since it is smaller than the sum of its proper divisors (230996840316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122509888644 is a wasteful number, since it uses less digits than its factorization.

122509888644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757561 (or 3757559 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 57.

The spelling of 122509888644 in words is "one hundred twenty-two billion, five hundred nine million, eight hundred eighty-eight thousand, six hundred forty-four".