26845981266 has 16 divisors (see below), whose sum is σ = 57822113664. Its totient is φ = 8260301904.

The previous prime is 26845981249. The next prime is 26845981289. The reversal of 26845981266 is 66218954862.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172089546 + ... + 172089701.

It is an arithmetic number, because the mean of its divisors is an integer number (3613882104).

Almost surely, 2^26845981266 is an apocalyptic number.

26845981266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26845981266 is an abundant number, since it is smaller than the sum of its proper divisors (30976132398).

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

26845981266 is a wasteful number, since it uses less digits than its factorization.

26845981266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344179265.

The product of its digits is 9953280, while the sum is 57.

The spelling of 26845981266 in words is "twenty-six billion, eight hundred forty-five million, nine hundred eighty-one thousand, two hundred sixty-six".