26623410121 has 16 divisors (see below), whose sum is σ = 33497354880. Its totient is φ = 20555182080.

The previous prime is 26623410103. The next prime is 26623410131. The reversal of 26623410121 is 12101432662.

It is a cyclic number.

It is not a de Polignac number, because 26623410121 - 2⁷ = 26623409993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26623410121.

It is not an unprimeable number, because it can be changed into a prime (26623410131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1577656 + ... + 1594441.

It is an arithmetic number, because the mean of its divisors is an integer number (2093584680).

Almost surely, 2^26623410121 is an apocalyptic number.

It is an amenable number.

26623410121 is a deficient number, since it is larger than the sum of its proper divisors (6873944759).

26623410121 is a wasteful number, since it uses less digits than its factorization.

26623410121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172224.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 26623410121 its reverse (12101432662), we get a palindrome (38724842783).

The spelling of 26623410121 in words is "twenty-six billion, six hundred twenty-three million, four hundred ten thousand, one hundred twenty-one".