26885328850049 has 4 divisors (see below), whose sum is σ = 26947419679236. Its totient is φ = 26823238020864.

The previous prime is 26885328850027. The next prime is 26885328850111. The reversal of 26885328850049 is 94005882358862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2850508839025 + 24034820011024 = 1688345^2 + 4902532^2 .

It is a cyclic number.

It is not a de Polignac number, because 26885328850049 - 2²⁰ = 26885327801473 is a prime.

It is a super-3 number, since 3×26885328850049³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26885328850949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31045413944 + ... + 31045414809.

It is an arithmetic number, because the mean of its divisors is an integer number (6736854919809).

Almost surely, 2^{26885328850049} is an apocalyptic number.

It is an amenable number.

26885328850049 is a deficient number, since it is larger than the sum of its proper divisors (62090829187).

26885328850049 is an equidigital number, since it uses as much as digits as its factorization.

26885328850049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62090829186.

The product of its (nonzero) digits is 265420800, while the sum is 68.

The spelling of 26885328850049 in words is "twenty-six trillion, eight hundred eighty-five billion, three hundred twenty-eight million, eight hundred fifty thousand, forty-nine".