254388008489 has 2 divisors, whose sum is σ = 254388008490. Its totient is φ = 254388008488.

The previous prime is 254388008429. The next prime is 254388008599. The reversal of 254388008489 is 984800883452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236541186025 + 17846822464 = 486355^2 + 133592^2 .

It is a cyclic number.

It is not a de Polignac number, because 254388008489 - 2⁸ = 254388008233 is a prime.

It is not a weakly prime, because it can be changed into another prime (254388008419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127194004244 + 127194004245.

It is an arithmetic number, because the mean of its divisors is an integer number (127194004245).

Almost surely, 2^254388008489 is an apocalyptic number.

It is an amenable number.

254388008489 is a deficient number, since it is larger than the sum of its proper divisors (1).

254388008489 is an equidigital number, since it uses as much as digits as its factorization.

254388008489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17694720, while the sum is 59.

The spelling of 254388008489 in words is "two hundred fifty-four billion, three hundred eighty-eight million, eight thousand, four hundred eighty-nine".