26921038848 has 264 divisors, whose sum is σ = 80981612640. Its totient is φ = 7885209600.

The previous prime is 26921038847. The next prime is 26921038849. The reversal of 26921038848 is 84883012962.

It is an interprime number because it is at equal distance from previous prime (26921038847) and next prime (26921038849).

It is a tau number, because it is divible by the number of its divisors (264).

It is a self number, because there is not a number n which added to its sum of digits gives 26921038848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26921038847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32473698 + ... + 32474526.

Almost surely, 2^26921038848 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 26921038848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40490806320).

26921038848 is an abundant number, since it is smaller than the sum of its proper divisors (54060573792).

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

26921038848 is a wasteful number, since it uses less digits than its factorization.

26921038848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 26921038848 in words is "twenty-six billion, nine hundred twenty-one million, thirty-eight thousand, eight hundred forty-eight".