26855989274 has 4 divisors (see below), whose sum is σ = 40283983914. Its totient is φ = 13427994636.

The previous prime is 26855989267. The next prime is 26855989297. The reversal of 26855989274 is 47298955862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26489841049 + 366148225 = 162757^2 + 19135^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26855989274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6713997317 + ... + 6713997320.

Almost surely, 2^26855989274 is an apocalyptic number.

26855989274 is a deficient number, since it is larger than the sum of its proper divisors (13427994640).

26855989274 is a wasteful number, since it uses less digits than its factorization.

26855989274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13427994639.

The product of its digits is 87091200, while the sum is 65.

The spelling of 26855989274 in words is "twenty-six billion, eight hundred fifty-five million, nine hundred eighty-nine thousand, two hundred seventy-four".