238783796267389 has 2 divisors, whose sum is σ = 238783796267390. Its totient is φ = 238783796267388.

The previous prime is 238783796267383. The next prime is 238783796267459. The reversal of 238783796267389 is 983762697387832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225549785439225 + 13234010828164 = 15018315^2 + 3637858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238783796267389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238783796267383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119391898133694 + 119391898133695.

It is an arithmetic number, because the mean of its divisors is an integer number (119391898133695).

Almost surely, 2^{238783796267389} is an apocalyptic number.

It is an amenable number.

238783796267389 is a deficient number, since it is larger than the sum of its proper divisors (1).

238783796267389 is an equidigital number, since it uses as much as digits as its factorization.

238783796267389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55306395648, while the sum is 88.

The spelling of 238783796267389 in words is "two hundred thirty-eight trillion, seven hundred eighty-three billion, seven hundred ninety-six million, two hundred sixty-seven thousand, three hundred eighty-nine".