238255787236669 has 2 divisors, whose sum is σ = 238255787236670. Its totient is φ = 238255787236668.

The previous prime is 238255787236553. The next prime is 238255787236673. The reversal of 238255787236669 is 966632787552832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217371234555225 + 20884552681444 = 14743515^2 + 4569962^2 .

It is a cyclic number.

It is not a de Polignac number, because 238255787236669 - 2¹⁷ = 238255787105597 is a prime.

It is a super-2 number, since 2×238255787236669² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238255787236469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119127893618334 + 119127893618335.

It is an arithmetic number, because the mean of its divisors is an integer number (119127893618335).

Almost surely, 2^{238255787236669} is an apocalyptic number.

It is an amenable number.

238255787236669 is a deficient number, since it is larger than the sum of its proper divisors (1).

238255787236669 is an equidigital number, since it uses as much as digits as its factorization.

238255787236669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10973491200, while the sum is 79.

The spelling of 238255787236669 in words is "two hundred thirty-eight trillion, two hundred fifty-five billion, seven hundred eighty-seven million, two hundred thirty-six thousand, six hundred sixty-nine".