238359907469 has 2 divisors, whose sum is σ = 238359907470. Its totient is φ = 238359907468.

The previous prime is 238359907421. The next prime is 238359907481. The reversal of 238359907469 is 964709953832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140484784969 + 97875122500 = 374813^2 + 312850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238359907469 is a prime.

It is a super-2 number, since 2×238359907469² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238359927469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119179953734 + 119179953735.

It is an arithmetic number, because the mean of its divisors is an integer number (119179953735).

Almost surely, 2^238359907469 is an apocalyptic number.

It is an amenable number.

238359907469 is a deficient number, since it is larger than the sum of its proper divisors (1).

238359907469 is an equidigital number, since it uses as much as digits as its factorization.

238359907469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88179840, while the sum is 65.

The spelling of 238359907469 in words is "two hundred thirty-eight billion, three hundred fifty-nine million, nine hundred seven thousand, four hundred sixty-nine".