26844842840 has 64 divisors (see below), whose sum is σ = 63116236800. Its totient is φ = 10256532352.

The previous prime is 26844842807. The next prime is 26844842861. The reversal of 26844842840 is 4824844862.

It is a super-3 number, since 3×26844842840³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641189 + ... + 681771.

It is an arithmetic number, because the mean of its divisors is an integer number (986191200).

Almost surely, 2^26844842840 is an apocalyptic number.

26844842840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26844842840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31558118400).

26844842840 is an abundant number, since it is smaller than the sum of its proper divisors (36271393960).

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

26844842840 is a wasteful number, since it uses less digits than its factorization.

26844842840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41336 (or 41332 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 50.

The spelling of 26844842840 in words is "twenty-six billion, eight hundred forty-four million, eight hundred forty-two thousand, eight hundred forty".