238795717661 has 16 divisors (see below), whose sum is σ = 249690954240. Its totient is φ = 227943598080.

The previous prime is 238795717651. The next prime is 238795717681. The reversal of 238795717661 is 166717597832.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 238795717661 - 2³⁰ = 237721975837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238795717594 and 238795717603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238795717621) 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, 57775751 + ... + 57779883.

It is an arithmetic number, because the mean of its divisors is an integer number (15605684640).

Almost surely, 2^238795717661 is an apocalyptic number.

It is an amenable number.

238795717661 is a deficient number, since it is larger than the sum of its proper divisors (10895236579).

238795717661 is a wasteful number, since it uses less digits than its factorization.

238795717661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716.

The product of its digits is 26671680, while the sum is 62.

The spelling of 238795717661 in words is "two hundred thirty-eight billion, seven hundred ninety-five million, seven hundred seventeen thousand, six hundred sixty-one".