26800809144 has 32 divisors (see below), whose sum is σ = 67178832000. Its totient is φ = 8910028512.

The previous prime is 26800809127. The next prime is 26800809163. The reversal of 26800809144 is 44190800862.

It is a super-2 number, since 2×26800809144² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26800809096 and 26800809105.

It is a congruent 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, 1464124 + ... + 1482315.

It is an arithmetic number, because the mean of its divisors is an integer number (2099338500).

Almost surely, 2^26800809144 is an apocalyptic number.

26800809144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26800809144 is an abundant number, since it is smaller than the sum of its proper divisors (40378022856).

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

26800809144 is a wasteful number, since it uses less digits than its factorization.

26800809144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946827 (or 2946823 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 26800809144 in words is "twenty-six billion, eight hundred million, eight hundred nine thousand, one hundred forty-four".