258438420979379 has 2 divisors, whose sum is σ = 258438420979380. Its totient is φ = 258438420979378.

The previous prime is 258438420979157. The next prime is 258438420979423. The reversal of 258438420979379 is 973979024834852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258438420979379 - 2¹² = 258438420975283 is a prime.

It is not a weakly prime, because it can be changed into another prime (258438420978379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129219210489689 + 129219210489690.

It is an arithmetic number, because the mean of its divisors is an integer number (129219210489690).

Almost surely, 2^{258438420979379} is an apocalyptic number.

258438420979379 is a deficient number, since it is larger than the sum of its proper divisors (1).

258438420979379 is an equidigital number, since it uses as much as digits as its factorization.

258438420979379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6584094720, while the sum is 80.

The spelling of 258438420979379 in words is "two hundred fifty-eight trillion, four hundred thirty-eight billion, four hundred twenty million, nine hundred seventy-nine thousand, three hundred seventy-nine".