26332611138 has 64 divisors (see below), whose sum is σ = 61650288000. Its totient is φ = 8308334592.

The previous prime is 26332611133. The next prime is 26332611161. The reversal of 26332611138 is 83111623362.

26332611138 is a `hidden beast` number, since 2 + 6 + 3 + 3 + 2 + 611 + 1 + 38 = 666.

It is a super-3 number, since 3×26332611138³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26332611133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1238098 + ... + 1259186.

It is an arithmetic number, because the mean of its divisors is an integer number (963285750).

Almost surely, 2^26332611138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26332611138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30825144000).

26332611138 is an abundant number, since it is smaller than the sum of its proper divisors (35317676862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26332611138 is a wasteful number, since it uses less digits than its factorization.

26332611138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22336 (or 22330 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 26332611138 in words is "twenty-six billion, three hundred thirty-two million, six hundred eleven thousand, one hundred thirty-eight".