238323659861 has 32 divisors (see below), whose sum is σ = 287467315200. Its totient is φ = 193012364160.

The previous prime is 238323659813. The next prime is 238323659921. The reversal of 238323659861 is 168956323832.

It is not a de Polignac number, because 238323659861 - 2⁶ = 238323659797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238323659797 and 238323659806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238323653861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127376756 + ... + 127378626.

It is an arithmetic number, because the mean of its divisors is an integer number (8983353600).

Almost surely, 2^238323659861 is an apocalyptic number.

It is an amenable number.

238323659861 is a deficient number, since it is larger than the sum of its proper divisors (49143655339).

238323659861 is a wasteful number, since it uses less digits than its factorization.

238323659861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929.

The product of its digits is 11197440, while the sum is 56.

The spelling of 238323659861 in words is "two hundred thirty-eight billion, three hundred twenty-three million, six hundred fifty-nine thousand, eight hundred sixty-one".