256158115827 has 8 divisors (see below), whose sum is σ = 341591666064. Its totient is φ = 170748321408.

The previous prime is 256158115799. The next prime is 256158115831. The reversal of 256158115827 is 728511851652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256158115827 - 2¹¹ = 256158113779 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 256158115827.

It is not an unprimeable number, because it can be changed into a prime (256158115847) 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 in 7 ways as a sum of consecutive naturals, for example, 5913778 + ... + 5956935.

It is an arithmetic number, because the mean of its divisors is an integer number (42698958258).

Almost surely, 2^256158115827 is an apocalyptic number.

256158115827 is a deficient number, since it is larger than the sum of its proper divisors (85433550237).

256158115827 is a wasteful number, since it uses less digits than its factorization.

256158115827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877909.

The product of its digits is 1344000, while the sum is 51.

The spelling of 256158115827 in words is "two hundred fifty-six billion, one hundred fifty-eight million, one hundred fifteen thousand, eight hundred twenty-seven".