254656779459 has 16 divisors (see below), whose sum is σ = 345534345600. Its totient is φ = 166779150336.

The previous prime is 254656779439. The next prime is 254656779613. The reversal of 254656779459 is 954977656452.

254656779459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 254656779459 - 2¹¹ = 254656777411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254656779393 and 254656779402.

It is not an unprimeable number, because it can be changed into a prime (254656779439) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 234814 + ... + 751299.

It is an arithmetic number, because the mean of its divisors is an integer number (21595896600).

Almost surely, 2^254656779459 is an apocalyptic number.

254656779459 is a deficient number, since it is larger than the sum of its proper divisors (90877566141).

254656779459 is a wasteful number, since it uses less digits than its factorization.

254656779459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987634.

The product of its digits is 571536000, while the sum is 69.

The spelling of 254656779459 in words is "two hundred fifty-four billion, six hundred fifty-six million, seven hundred seventy-nine thousand, four hundred fifty-nine".