238368688739 has 2 divisors, whose sum is σ = 238368688740. Its totient is φ = 238368688738.

The previous prime is 238368688651. The next prime is 238368688757. The reversal of 238368688739 is 937886863832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238368688739 - 2¹² = 238368684643 is a prime.

It is not a weakly prime, because it can be changed into another prime (238368678739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119184344369 + 119184344370.

It is an arithmetic number, because the mean of its divisors is an integer number (119184344370).

Almost surely, 2^238368688739 is an apocalyptic number.

238368688739 is a deficient number, since it is larger than the sum of its proper divisors (1).

238368688739 is an equidigital number, since it uses as much as digits as its factorization.

238368688739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 501645312, while the sum is 71.

The spelling of 238368688739 in words is "two hundred thirty-eight billion, three hundred sixty-eight million, six hundred eighty-eight thousand, seven hundred thirty-nine".