26480321280 has 864 divisors, whose sum is σ = 115203110400. Its totient is φ = 5727117312.

The previous prime is 26480321279. The next prime is 26480321297. The reversal of 26480321280 is 8212308462.

26480321280 is a `hidden beast` number, since 2 + 648 + 0 + 3 + 2 + 1 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 32174949 + ... + 32175771.

Almost surely, 2^26480321280 is an apocalyptic number.

26480321280 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 26480321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57601555200).

26480321280 is an abundant number, since it is smaller than the sum of its proper divisors (88722789120).

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

26480321280 is a wasteful number, since it uses less digits than its factorization.

26480321280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 26480321280 in words is "twenty-six billion, four hundred eighty million, three hundred twenty-one thousand, two hundred eighty".