26774965888 has 64 divisors (see below), whose sum is σ = 58561031520. Its totient is φ = 12092820480.

The previous prime is 26774965871. The next prime is 26774965907. The reversal of 26774965888 is 88856947762.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 160495 + ... + 281617.

Almost surely, 2^26774965888 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 26774965888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29280515760).

26774965888 is an abundant number, since it is smaller than the sum of its proper divisors (31786065632).

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

26774965888 is a wasteful number, since it uses less digits than its factorization.

26774965888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121305 (or 121293 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 70.

The spelling of 26774965888 in words is "twenty-six billion, seven hundred seventy-four million, nine hundred sixty-five thousand, eight hundred eighty-eight".