238428112609 has 16 divisors (see below), whose sum is σ = 251221824000. Its totient is φ = 225982402560.

The previous prime is 238428112607. The next prime is 238428112669. The reversal of 238428112609 is 906211824832.

238428112609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 238428112609 - 2¹ = 238428112607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238428112607) 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 15 ways as a sum of consecutive naturals, for example, 249697 + ... + 734305.

It is an arithmetic number, because the mean of its divisors is an integer number (15701364000).

Almost surely, 2^238428112609 is an apocalyptic number.

It is an amenable number.

238428112609 is a deficient number, since it is larger than the sum of its proper divisors (12793711391).

238428112609 is a wasteful number, since it uses less digits than its factorization.

238428112609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484968.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 238428112609 in words is "two hundred thirty-eight billion, four hundred twenty-eight million, one hundred twelve thousand, six hundred nine".