26645233338 has 192 divisors, whose sum is σ = 66421555200. Its totient is φ = 7967678400.

The previous prime is 26645233313. The next prime is 26645233343. The reversal of 26645233338 is 83333254662.

26645233338 is a `hidden beast` number, since 2 + 6 + 64 + 523 + 33 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 26645233293 and 26645233302.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23149063 + ... + 23150213.

It is an arithmetic number, because the mean of its divisors is an integer number (345945600).

Almost surely, 2^26645233338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26645233338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33210777600).

26645233338 is an abundant number, since it is smaller than the sum of its proper divisors (39776321862).

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

26645233338 is a wasteful number, since it uses less digits than its factorization.

26645233338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1307 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

The spelling of 26645233338 in words is "twenty-six billion, six hundred forty-five million, two hundred thirty-three thousand, three hundred thirty-eight".