258768933551 has 2 divisors, whose sum is σ = 258768933552. Its totient is φ = 258768933550.

The previous prime is 258768933509. The next prime is 258768933571. The reversal of 258768933551 is 155339867852.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258768933551 - 2⁶ = 258768933487 is a prime.

It is a super-2 number, since 2×258768933551² (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 (258768933571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129384466775 + 129384466776.

It is an arithmetic number, because the mean of its divisors is an integer number (129384466776).

Almost surely, 2^258768933551 is an apocalyptic number.

258768933551 is a deficient number, since it is larger than the sum of its proper divisors (1).

258768933551 is an equidigital number, since it uses as much as digits as its factorization.

258768933551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432000, while the sum is 62.

The spelling of 258768933551 in words is "two hundred fifty-eight billion, seven hundred sixty-eight million, nine hundred thirty-three thousand, five hundred fifty-one".