26720906133 has 4 divisors (see below), whose sum is σ = 35627874848. Its totient is φ = 17813937420.

The previous prime is 26720906117. The next prime is 26720906137. The reversal of 26720906133 is 33160902762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26720906133 - 2⁴ = 26720906117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26720906091 and 26720906100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26720906137) 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 3 ways as a sum of consecutive naturals, for example, 4453484353 + ... + 4453484358.

It is an arithmetic number, because the mean of its divisors is an integer number (8906968712).

Almost surely, 2^26720906133 is an apocalyptic number.

It is an amenable number.

26720906133 is a deficient number, since it is larger than the sum of its proper divisors (8906968715).

26720906133 is an equidigital number, since it uses as much as digits as its factorization.

26720906133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8906968714.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 26720906133 in words is "twenty-six billion, seven hundred twenty million, nine hundred six thousand, one hundred thirty-three".