26603271047 has 4 divisors (see below), whose sum is σ = 26605190280. Its totient is φ = 26601351816.

The previous prime is 26603270999. The next prime is 26603271077. The reversal of 26603271047 is 74017230662.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26603271047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26603271047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26603271077) 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 3 ways as a sum of consecutive naturals, for example, 938672 + ... + 966597.

It is an arithmetic number, because the mean of its divisors is an integer number (6651297570).

Almost surely, 2^26603271047 is an apocalyptic number.

26603271047 is a deficient number, since it is larger than the sum of its proper divisors (1919233).

26603271047 is a wasteful number, since it uses less digits than its factorization.

26603271047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919232.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 26603271047 in words is "twenty-six billion, six hundred three million, two hundred seventy-one thousand, forty-seven".