238288339769 has 4 divisors (see below), whose sum is σ = 238305720180. Its totient is φ = 238270959360.

The previous prime is 238288339759. The next prime is 238288339789. The reversal of 238288339769 is 967933882832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14668116544 + 223620223225 = 121112^2 + 472885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238288339769 is a prime.

It is a super-2 number, since 2×238288339769² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238288339699 and 238288339708.

It is not an unprimeable number, because it can be changed into a prime (238288339759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8669624 + ... + 8697065.

It is an arithmetic number, because the mean of its divisors is an integer number (59576430045).

Almost surely, 2^238288339769 is an apocalyptic number.

It is an amenable number.

238288339769 is a deficient number, since it is larger than the sum of its proper divisors (17380411).

238288339769 is a wasteful number, since it uses less digits than its factorization.

238288339769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17380410.

The product of its digits is 188116992, while the sum is 68.

The spelling of 238288339769 in words is "two hundred thirty-eight billion, two hundred eighty-eight million, three hundred thirty-nine thousand, seven hundred sixty-nine".