26689336044 has 96 divisors (see below), whose sum is σ = 73879142400. Its totient is φ = 7338185280.

The previous prime is 26689335991. The next prime is 26689336073. The reversal of 26689336044 is 44063398662.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437487 + ... + 494745.

It is an arithmetic number, because the mean of its divisors is an integer number (769574400).

Almost surely, 2^26689336044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26689336044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36939571200).

26689336044 is an abundant number, since it is smaller than the sum of its proper divisors (47189806356).

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

26689336044 is a wasteful number, since it uses less digits than its factorization.

26689336044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57483 (or 57481 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 26689336044 in words is "twenty-six billion, six hundred eighty-nine million, three hundred thirty-six thousand, forty-four".