26888081052 has 144 divisors (see below), whose sum is σ = 74540541600. Its totient is φ = 7518970368.

The previous prime is 26888081047. The next prime is 26888081053. The reversal of 26888081052 is 25018088862.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26888080992 and 26888081010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26888081053) 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 47 ways as a sum of consecutive naturals, for example, 17357574 + ... + 17359122.

It is an arithmetic number, because the mean of its divisors is an integer number (517642650).

Almost surely, 2^26888081052 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 26888081052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37270270800).

26888081052 is an abundant number, since it is smaller than the sum of its proper divisors (47652460548).

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

26888081052 is a wasteful number, since it uses less digits than its factorization.

26888081052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The spelling of 26888081052 in words is "twenty-six billion, eight hundred eighty-eight million, eighty-one thousand, fifty-two".