26404040604440 has 64 divisors (see below), whose sum is σ = 59858417979360. Its totient is φ = 10482031272960.

The previous prime is 26404040604397. The next prime is 26404040604481. The reversal of 26404040604440 is 4440604040462.

It is a junction number, because it is equal to n+sod(n) for n = 26404040604394 and 26404040604403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1752851 + ... + 7475330.

Almost surely, 2^{26404040604440} is an apocalyptic number.

26404040604440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26404040604440 is an abundant number, since it is smaller than the sum of its proper divisors (33454377374920).

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

26404040604440 is a wasteful number, since it uses less digits than its factorization.

26404040604440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9228732 (or 9228728 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 26404040604440 in words is "twenty-six trillion, four hundred four billion, forty million, six hundred four thousand, four hundred forty".