26661213226 has 8 divisors (see below), whose sum is σ = 40256666784. Its totient is φ = 13242324300.

The previous prime is 26661213221. The next prime is 26661213253. The reversal of 26661213226 is 62231216662.

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

It is not an unprimeable number, because it can be changed into a prime (26661213221) 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, 44140780 + ... + 44141383.

It is an arithmetic number, because the mean of its divisors is an integer number (5032083348).

Almost surely, 2^26661213226 is an apocalyptic number.

26661213226 is a deficient number, since it is larger than the sum of its proper divisors (13595453558).

26661213226 is a wasteful number, since it uses less digits than its factorization.

26661213226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88282316.

The product of its digits is 62208, while the sum is 37.

Adding to 26661213226 its reverse (62231216662), we get a palindrome (88892429888).

The spelling of 26661213226 in words is "twenty-six billion, six hundred sixty-one million, two hundred thirteen thousand, two hundred twenty-six".