26217921160 has 32 divisors (see below), whose sum is σ = 59035921560. Its totient is φ = 10479062016.

The previous prime is 26217921157. The next prime is 26217921161. The reversal of 26217921160 is 6112971262.

It can be written as a sum of positive squares in 4 ways, for example, as 25031669796 + 1186251364 = 158214^2 + 34442^2 .

It is not an unprimeable number, because it can be changed into a prime (26217921161) 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 7 ways as a sum of consecutive naturals, for example, 200799 + ... + 304558.

Almost surely, 2^26217921160 is an apocalyptic number.

26217921160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26217921160 is an abundant number, since it is smaller than the sum of its proper divisors (32818000400).

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

26217921160 is a wasteful number, since it uses less digits than its factorization.

26217921160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506665 (or 506661 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 26217921160 in words is "twenty-six billion, two hundred seventeen million, nine hundred twenty-one thousand, one hundred sixty".