26951278879 has 8 divisors (see below), whose sum is σ = 30826492928. Its totient is φ = 23082322680.

The previous prime is 26951278841. The next prime is 26951278889. The reversal of 26951278879 is 97887215962.

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

It is a cyclic number.

It is not a de Polignac number, because 26951278879 - 2⁷ = 26951278751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26951278879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26951278889) 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 7 ways as a sum of consecutive naturals, for example, 1555227 + ... + 1572460.

It is an arithmetic number, because the mean of its divisors is an integer number (3853311616).

Almost surely, 2^26951278879 is an apocalyptic number.

26951278879 is a deficient number, since it is larger than the sum of its proper divisors (3875214049).

26951278879 is a wasteful number, since it uses less digits than its factorization.

26951278879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128925.

The product of its digits is 30481920, while the sum is 64.

The spelling of 26951278879 in words is "twenty-six billion, nine hundred fifty-one million, two hundred seventy-eight thousand, eight hundred seventy-nine".