26889133378 has 12 divisors (see below), whose sum is σ = 40375396530. Its totient is φ = 13430675456.

The previous prime is 26889133363. The next prime is 26889133391. The reversal of 26889133378 is 87333198862.

It can be written as a sum of positive squares in 3 ways, for example, as 25463542329 + 1425591049 = 159573^2 + 37757^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 8703258 + ... + 8706346.

Almost surely, 2^26889133378 is an apocalyptic number.

26889133378 is a deficient number, since it is larger than the sum of its proper divisors (13486263152).

26889133378 is an frugal number, since it uses more digits than its factorization.

26889133378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589 (or 4500 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 58.

The spelling of 26889133378 in words is "twenty-six billion, eight hundred eighty-nine million, one hundred thirty-three thousand, three hundred seventy-eight".