239745823122 has 48 divisors (see below), whose sum is σ = 519476976000. Its totient is φ = 73730419776.

The previous prime is 239745823081. The next prime is 239745823127. The reversal of 239745823122 is 221328547932.

It is not an unprimeable number, because it can be changed into a prime (239745823127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1967848 + ... + 2086124.

It is an arithmetic number, because the mean of its divisors is an integer number (10822437000).

Almost surely, 2^239745823122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239745823122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259738488000).

239745823122 is an abundant number, since it is smaller than the sum of its proper divisors (279731152878).

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

239745823122 is a wasteful number, since it uses less digits than its factorization.

239745823122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120307 (or 120294 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 239745823122 in words is "two hundred thirty-nine billion, seven hundred forty-five million, eight hundred twenty-three thousand, one hundred twenty-two".