26471561241 has 4 divisors (see below), whose sum is σ = 35295414992. Its totient is φ = 17647707492.

The previous prime is 26471561239. The next prime is 26471561251. The reversal of 26471561241 is 14216517462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26471561241 - 2¹ = 26471561239 is a prime.

It is a Duffinian number.

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 26471561241.

It is not an unprimeable number, because it can be changed into a prime (26471561201) 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, 4411926871 + ... + 4411926876.

It is an arithmetic number, because the mean of its divisors is an integer number (8823853748).

Almost surely, 2^26471561241 is an apocalyptic number.

It is an amenable number.

26471561241 is a deficient number, since it is larger than the sum of its proper divisors (8823853751).

26471561241 is an equidigital number, since it uses as much as digits as its factorization.

26471561241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823853750.

The product of its digits is 80640, while the sum is 39.

The spelling of 26471561241 in words is "twenty-six billion, four hundred seventy-one million, five hundred sixty-one thousand, two hundred forty-one".