239804637108481 has 2 divisors, whose sum is σ = 239804637108482. Its totient is φ = 239804637108480.

The previous prime is 239804637108467. The next prime is 239804637108511. The reversal of 239804637108481 is 184801736408932.

239804637108481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239797613160000 + 7023948481 = 15485400^2 + 83809^2 .

It is a cyclic number.

It is not a de Polignac number, because 239804637108481 - 2⁹ = 239804637107969 is a prime.

It is a super-2 number, since 2×239804637108481² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (239804637108431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119902318554240 + 119902318554241.

It is an arithmetic number, because the mean of its divisors is an integer number (119902318554241).

Almost surely, 2^{239804637108481} is an apocalyptic number.

It is an amenable number.

239804637108481 is a deficient number, since it is larger than the sum of its proper divisors (1).

239804637108481 is an equidigital number, since it uses as much as digits as its factorization.

239804637108481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 239804637108481 in words is "two hundred thirty-nine trillion, eight hundred four billion, six hundred thirty-seven million, one hundred eight thousand, four hundred eighty-one".