258613824869 has 2 divisors, whose sum is σ = 258613824870. Its totient is φ = 258613824868.

The previous prime is 258613824829. The next prime is 258613824899. The reversal of 258613824869 is 968428316852.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258211341025 + 402483844 = 508145^2 + 20062^2 .

It is a cyclic number.

It is not a de Polignac number, because 258613824869 - 2²⁸ = 258345389413 is a prime.

It is a super-2 number, since 2×258613824869² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258613824829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129306912434 + 129306912435.

It is an arithmetic number, because the mean of its divisors is an integer number (129306912435).

Almost surely, 2^258613824869 is an apocalyptic number.

It is an amenable number.

258613824869 is a deficient number, since it is larger than the sum of its proper divisors (1).

258613824869 is an equidigital number, since it uses as much as digits as its factorization.

258613824869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39813120, while the sum is 62.

The spelling of 258613824869 in words is "two hundred fifty-eight billion, six hundred thirteen million, eight hundred twenty-four thousand, eight hundred sixty-nine".