26628344099 has 8 divisors (see below), whose sum is σ = 30433886208. Its totient is φ = 22823175240.

The previous prime is 26628344089. The next prime is 26628344159. The reversal of 26628344099 is 99044382662.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26628344099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26628344099.

It is not an unprimeable number, because it can be changed into a prime (26628344089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81374 + ... + 244700.

It is an arithmetic number, because the mean of its divisors is an integer number (3804235776).

Almost surely, 2^26628344099 is an apocalyptic number.

26628344099 is a deficient number, since it is larger than the sum of its proper divisors (3805542109).

26628344099 is a wasteful number, since it uses less digits than its factorization.

26628344099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186625.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 26628344099 in words is "twenty-six billion, six hundred twenty-eight million, three hundred forty-four thousand, ninety-nine".