26404241217 has 8 divisors (see below), whose sum is σ = 36157159296. Its totient is φ = 17127075312.

The previous prime is 26404241207. The next prime is 26404241221. The reversal of 26404241217 is 71214240462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26404241217 - 2¹⁹ = 26403716929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26404241207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118937913 + ... + 118938134.

It is an arithmetic number, because the mean of its divisors is an integer number (4519644912).

Almost surely, 2^26404241217 is an apocalyptic number.

It is an amenable number.

26404241217 is a deficient number, since it is larger than the sum of its proper divisors (9752918079).

26404241217 is a wasteful number, since it uses less digits than its factorization.

26404241217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237876087.

The product of its (nonzero) digits is 21504, while the sum is 33.

Adding to 26404241217 its reverse (71214240462), we get a palindrome (97618481679).

The spelling of 26404241217 in words is "twenty-six billion, four hundred four million, two hundred forty-one thousand, two hundred seventeen".