258250578278 has 16 divisors (see below), whose sum is σ = 482962120704. Its totient is φ = 100617108360.

The previous prime is 258250578269. The next prime is 258250578317. The reversal of 258250578278 is 872875052852.

258250578278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×258250578278² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838475750 + ... + 838476057.

It is an arithmetic number, because the mean of its divisors is an integer number (30185132544).

Almost surely, 2^258250578278 is an apocalyptic number.

258250578278 is a deficient number, since it is larger than the sum of its proper divisors (224711542426).

258250578278 is a wasteful number, since it uses less digits than its factorization.

258250578278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676951827.

The product of its (nonzero) digits is 25088000, while the sum is 59.

The spelling of 258250578278 in words is "two hundred fifty-eight billion, two hundred fifty million, five hundred seventy-eight thousand, two hundred seventy-eight".