26081905800 has 192 divisors, whose sum is σ = 84880281600. Its totient is φ = 6616454400.

The previous prime is 26081905781. The next prime is 26081905823. The reversal of 26081905800 is 850918062.

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 47 ways as a sum of consecutive naturals, for example, 1085517 + ... + 1109283.

It is an arithmetic number, because the mean of its divisors is an integer number (442084800).

Almost surely, 2^26081905800 is an apocalyptic number.

26081905800 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 26081905800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42440140800).

26081905800 is an abundant number, since it is smaller than the sum of its proper divisors (58798375800).

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

26081905800 is a wasteful number, since it uses less digits than its factorization.

26081905800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23876 (or 23867 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 26081905800 in words is "twenty-six billion, eighty-one million, nine hundred five thousand, eight hundred".