238287775254449 has 2 divisors, whose sum is σ = 238287775254450. Its totient is φ = 238287775254448.

The previous prime is 238287775254437. The next prime is 238287775254457. The reversal of 238287775254449 is 944452577782832.

238287775254449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199854966918049 + 38432808336400 = 14137007^2 + 6199420^2 .

It is a cyclic number.

It is not a de Polignac number, because 238287775254449 - 2⁴ = 238287775254433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238287775254449.

It is not a weakly prime, because it can be changed into another prime (238287775254479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119143887627224 + 119143887627225.

It is an arithmetic number, because the mean of its divisors is an integer number (119143887627225).

Almost surely, 2^{238287775254449} is an apocalyptic number.

It is an amenable number.

238287775254449 is a deficient number, since it is larger than the sum of its proper divisors (1).

238287775254449 is an equidigital number, since it uses as much as digits as its factorization.

238287775254449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7586611200, while the sum is 77.

The spelling of 238287775254449 in words is "two hundred thirty-eight trillion, two hundred eighty-seven billion, seven hundred seventy-five million, two hundred fifty-four thousand, four hundred forty-nine".