26604406720 has 112 divisors (see below), whose sum is σ = 63845895168. Its totient is φ = 10559144960.

The previous prime is 26604406711. The next prime is 26604406721. The reversal of 26604406720 is 2760440662.

It is a super-3 number, since 3×26604406720³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26604406720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26604406721) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29203065 + ... + 29203975.

Almost surely, 2^26604406720 is an apocalyptic number.

26604406720 is a gapful number since it is divisible by the number (20) 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 26604406720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31922947584).

26604406720 is an abundant number, since it is smaller than the sum of its proper divisors (37241488448).

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

26604406720 is a wasteful number, since it uses less digits than its factorization.

26604406720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 26604406720 in words is "twenty-six billion, six hundred four million, four hundred six thousand, seven hundred twenty".