258797959791827 has 2 divisors, whose sum is σ = 258797959791828. Its totient is φ = 258797959791826.

The previous prime is 258797959791757. The next prime is 258797959791859. The reversal of 258797959791827 is 728197959797852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258797959791827 - 2⁸ = 258797959791571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258797959791827.

It is not a weakly prime, because it can be changed into another prime (258797959791127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129398979895913 + 129398979895914.

It is an arithmetic number, because the mean of its divisors is an integer number (129398979895914).

Almost surely, 2^{258797959791827} is an apocalyptic number.

258797959791827 is a deficient number, since it is larger than the sum of its proper divisors (1).

258797959791827 is an equidigital number, since it uses as much as digits as its factorization.

258797959791827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100818950400, while the sum is 95.

The spelling of 258797959791827 in words is "two hundred fifty-eight trillion, seven hundred ninety-seven billion, nine hundred fifty-nine million, seven hundred ninety-one thousand, eight hundred twenty-seven".