26604980064 has 240 divisors, whose sum is σ = 84940466688. Its totient is φ = 8120383488.

The previous prime is 26604980047. The next prime is 26604980089. The reversal of 26604980064 is 46008940662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4276284 + ... + 4282500.

Almost surely, 2^26604980064 is an apocalyptic number.

26604980064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26604980064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42470233344).

26604980064 is an abundant number, since it is smaller than the sum of its proper divisors (58335486624).

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

26604980064 is a wasteful number, since it uses less digits than its factorization.

26604980064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379 (or 6362 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 26604980064 in words is "twenty-six billion, six hundred four million, nine hundred eighty thousand, sixty-four".