258368695809 has 64 divisors (see below), whose sum is σ = 447083919360. Its totient is φ = 129157217280.

The previous prime is 258368695777. The next prime is 258368695853. The reversal of 258368695809 is 908596863852.

It is not a de Polignac number, because 258368695809 - 2⁵ = 258368695777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258368695009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154 + ... + 718844.

It is an arithmetic number, because the mean of its divisors is an integer number (6985686240).

Almost surely, 2^258368695809 is an apocalyptic number.

It is an amenable number.

258368695809 is a deficient number, since it is larger than the sum of its proper divisors (188715223551).

258368695809 is a wasteful number, since it uses less digits than its factorization.

258368695809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718790.

The product of its (nonzero) digits is 223948800, while the sum is 69.

The spelling of 258368695809 in words is "two hundred fifty-eight billion, three hundred sixty-eight million, six hundred ninety-five thousand, eight hundred nine".