258252778339 has 2 divisors, whose sum is σ = 258252778340. Its totient is φ = 258252778338.

The previous prime is 258252778193. The next prime is 258252778391. The reversal of 258252778339 is 933877252852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258252778339 - 2¹¹ = 258252776291 is a prime.

It is not a weakly prime, because it can be changed into another prime (258252778739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129126389169 + 129126389170.

It is an arithmetic number, because the mean of its divisors is an integer number (129126389170).

Almost surely, 2^258252778339 is an apocalyptic number.

258252778339 is a deficient number, since it is larger than the sum of its proper divisors (1).

258252778339 is an equidigital number, since it uses as much as digits as its factorization.

258252778339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 61.

The spelling of 258252778339 in words is "two hundred fifty-eight billion, two hundred fifty-two million, seven hundred seventy-eight thousand, three hundred thirty-nine".