26840816900 has 36 divisors (see below), whose sum is σ = 59231781840. Its totient is φ = 10554352800.

The previous prime is 26840816881. The next prime is 26840816909. The reversal of 26840816900 is 961804862.

It is a happy number.

It is a super-2 number, since 2×26840816900² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26840816909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2268746 + ... + 2280545.

Almost surely, 2^26840816900 is an apocalyptic number.

26840816900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26840816900 is an abundant number, since it is smaller than the sum of its proper divisors (32390964940).

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

26840816900 is a wasteful number, since it uses less digits than its factorization.

26840816900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549364 (or 4549357 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 26840816900 in words is "twenty-six billion, eight hundred forty million, eight hundred sixteen thousand, nine hundred".