238809119761 has 9 divisors (see below), whose sum is σ = 249655310121. Its totient is φ = 228415363572.

The previous prime is 238809119753. The next prime is 238809119767. The reversal of 238809119761 is 167911908832.

It is a happy number.

The square root of 238809119761 is 488681.

It is a perfect power (a square), and thus also a powerful number.

238809119761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238809119761 - 2³ = 238809119753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238809119767) 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 8 ways as a sum of consecutive naturals, for example, 11229040 + ... + 11250286.

Almost surely, 2^238809119761 is an apocalyptic number.

238809119761 is the 488681-st square number.

238809119761 is the 244341-st centered octagonal number.

It is an amenable number.

238809119761 is a deficient number, since it is larger than the sum of its proper divisors (10846190360).

238809119761 is an frugal number, since it uses more digits than its factorization.

238809119761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42540 (or 21270 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The spelling of 238809119761 in words is "two hundred thirty-eight billion, eight hundred nine million, one hundred nineteen thousand, seven hundred sixty-one".