238608251609 has 16 divisors (see below), whose sum is σ = 293685608832. Its totient is φ = 188780001408.

The previous prime is 238608251597. The next prime is 238608251611. The reversal of 238608251609 is 906152806832.

It is a cyclic number.

It is not a de Polignac number, because 238608251609 - 2⁸ = 238608251353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238608251659) 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, 2404082 + ... + 2501364.

It is an arithmetic number, because the mean of its divisors is an integer number (18355350552).

Almost surely, 2^238608251609 is an apocalyptic number.

It is an amenable number.

238608251609 is a deficient number, since it is larger than the sum of its proper divisors (55077357223).

238608251609 is a wasteful number, since it uses less digits than its factorization.

238608251609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124256.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 238608251609 in words is "two hundred thirty-eight billion, six hundred eight million, two hundred fifty-one thousand, six hundred nine".