258842248851 has 4 divisors (see below), whose sum is σ = 345122998472. Its totient is φ = 172561499232.

The previous prime is 258842248811. The next prime is 258842248871. The reversal of 258842248851 is 158842248852.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 258842248851 - 2³³ = 250252314259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258842248791 and 258842248800.

It is not an unprimeable number, because it can be changed into a prime (258842248801) 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 in 3 ways as a sum of consecutive naturals, for example, 43140374806 + ... + 43140374811.

It is an arithmetic number, because the mean of its divisors is an integer number (86280749618).

Almost surely, 2^258842248851 is an apocalyptic number.

258842248851 is a deficient number, since it is larger than the sum of its proper divisors (86280749621).

258842248851 is an equidigital number, since it uses as much as digits as its factorization.

258842248851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86280749620.

The product of its digits is 13107200, while the sum is 57.

Subtracting from 258842248851 its reverse (158842248852), we obtain a palindrome (99999999999).

The spelling of 258842248851 in words is "two hundred fifty-eight billion, eight hundred forty-two million, two hundred forty-eight thousand, eight hundred fifty-one".