26800775605040 has 80 divisors (see below), whose sum is σ = 63767626447008. Its totient is φ = 10469898528768.

The previous prime is 26800775605031. The next prime is 26800775605067. The reversal of 26800775605040 is 4050657700862.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 26800775605040.

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, 32663492 + ... + 33473948.

Almost surely, 2^{26800775605040} is an apocalyptic number.

26800775605040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26800775605040 is an abundant number, since it is smaller than the sum of its proper divisors (36966850841968).

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

26800775605040 is a wasteful number, since it uses less digits than its factorization.

26800775605040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820126 (or 820120 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 26800775605040 in words is "twenty-six trillion, eight hundred billion, seven hundred seventy-five million, six hundred five thousand, forty".