26838657637109 has 8 divisors (see below), whose sum is σ = 27018941644800. Its totient is φ = 26658375746896.

The previous prime is 26838657637097. The next prime is 26838657637117. The reversal of 26838657637109 is 90173675683862.

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

It is a cyclic number.

It is not a de Polignac number, because 26838657637109 - 2⁴ = 26838657637093 is a prime.

It is a super-2 number, since 2×26838657637109² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26838657637159) 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, 31317644 + ... + 32163210.

It is an arithmetic number, because the mean of its divisors is an integer number (3377367705600).

Almost surely, 2^{26838657637109} is an apocalyptic number.

It is an amenable number.

26838657637109 is a deficient number, since it is larger than the sum of its proper divisors (180284007691).

26838657637109 is a wasteful number, since it uses less digits than its factorization.

26838657637109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058739.

The product of its (nonzero) digits is 548674560, while the sum is 71.

The spelling of 26838657637109 in words is "twenty-six trillion, eight hundred thirty-eight billion, six hundred fifty-seven million, six hundred thirty-seven thousand, one hundred nine".