26181380733 has 16 divisors (see below), whose sum is σ = 36907691520. Its totient is φ = 16462756656.

The previous prime is 26181380669. The next prime is 26181380741. The reversal of 26181380733 is 33708318162.

It is not a de Polignac number, because 26181380733 - 2⁶ = 26181380669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26181380233) 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, 998785 + ... + 1024662.

It is an arithmetic number, because the mean of its divisors is an integer number (2306730720).

Almost surely, 2^26181380733 is an apocalyptic number.

It is an amenable number.

26181380733 is a deficient number, since it is larger than the sum of its proper divisors (10726310787).

26181380733 is a wasteful number, since it uses less digits than its factorization.

26181380733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023696.

The product of its (nonzero) digits is 145152, while the sum is 42.

Adding to 26181380733 its reverse (33708318162), we get a palindrome (59889698895).

The spelling of 26181380733 in words is "twenty-six billion, one hundred eighty-one million, three hundred eighty thousand, seven hundred thirty-three".