258104453449 has 2 divisors, whose sum is σ = 258104453450. Its totient is φ = 258104453448.

The previous prime is 258104453401. The next prime is 258104453483. The reversal of 258104453449 is 944354401852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229091463225 + 29012990224 = 478635^2 + 170332^2 .

It is a cyclic number.

It is not a de Polignac number, because 258104453449 - 2²⁵ = 258070899017 is a prime.

It is not a weakly prime, because it can be changed into another prime (258104403449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129052226724 + 129052226725.

It is an arithmetic number, because the mean of its divisors is an integer number (129052226725).

Almost surely, 2^258104453449 is an apocalyptic number.

It is an amenable number.

258104453449 is a deficient number, since it is larger than the sum of its proper divisors (1).

258104453449 is an equidigital number, since it uses as much as digits as its factorization.

258104453449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 258104453449 in words is "two hundred fifty-eight billion, one hundred four million, four hundred fifty-three thousand, four hundred forty-nine".