26381811148 has 96 divisors (see below), whose sum is σ = 61116733440. Its totient is φ = 9646940160.

The previous prime is 26381811121. The next prime is 26381811149. The reversal of 26381811148 is 84111818362.

It is not an unprimeable number, because it can be changed into a prime (26381811149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1914748 + ... + 1928476.

It is an arithmetic number, because the mean of its divisors is an integer number (636632640).

Almost surely, 2^26381811148 is an apocalyptic number.

26381811148 is a gapful number since it is divisible by the number (28) 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 26381811148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30558366720).

26381811148 is an abundant number, since it is smaller than the sum of its proper divisors (34734922292).

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

26381811148 is a wasteful number, since it uses less digits than its factorization.

26381811148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135 (or 14133 counting only the distinct ones).

The product of its digits is 73728, while the sum is 43.

The spelling of 26381811148 in words is "twenty-six billion, three hundred eighty-one million, eight hundred eleven thousand, one hundred forty-eight".