26551974227 has 4 divisors (see below), whose sum is σ = 26671041600. Its totient is φ = 26432906856.

The previous prime is 26551974047. The next prime is 26551974271. The reversal of 26551974227 is 72247915562.

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

It is a cyclic number.

It is not a de Polignac number, because 26551974227 - 2⁸ = 26551973971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26551970227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59533352 + ... + 59533797.

It is an arithmetic number, because the mean of its divisors is an integer number (6667760400).

Almost surely, 2^26551974227 is an apocalyptic number.

26551974227 is a deficient number, since it is larger than the sum of its proper divisors (119067373).

26551974227 is a wasteful number, since it uses less digits than its factorization.

26551974227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119067372.

The product of its digits is 2116800, while the sum is 50.

The spelling of 26551974227 in words is "twenty-six billion, five hundred fifty-one million, nine hundred seventy-four thousand, two hundred twenty-seven".