26447237255 has 4 divisors (see below), whose sum is σ = 31736684712. Its totient is φ = 21157789800.

The previous prime is 26447237249. The next prime is 26447237293. The reversal of 26447237255 is 55273274462.

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

It is not a de Polignac number, because 26447237255 - 2⁸ = 26447236999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2644723721 + ... + 2644723730.

It is an arithmetic number, because the mean of its divisors is an integer number (7934171178).

Almost surely, 2^26447237255 is an apocalyptic number.

26447237255 is a deficient number, since it is larger than the sum of its proper divisors (5289447457).

26447237255 is an equidigital number, since it uses as much as digits as its factorization.

26447237255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289447456.

The product of its digits is 2822400, while the sum is 47.

The spelling of 26447237255 in words is "twenty-six billion, four hundred forty-seven million, two hundred thirty-seven thousand, two hundred fifty-five".