26854990847999 has 8 divisors (see below), whose sum is σ = 26955671430240. Its totient is φ = 26754497929216.

The previous prime is 26854990847957. The next prime is 26854990848029. The reversal of 26854990847999 is 99974809945862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26854990847999 is a prime.

It is a super-2 number, since 2×26854990847999² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26854990847929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46629122 + ... + 47201535.

It is an arithmetic number, because the mean of its divisors is an integer number (3369458928780).

Almost surely, 2^{26854990847999} is an apocalyptic number.

26854990847999 is a deficient number, since it is larger than the sum of its proper divisors (100680582241).

26854990847999 is an equidigital number, since it uses as much as digits as its factorization.

26854990847999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93831729.

The product of its (nonzero) digits is 25395793920, while the sum is 89.

The spelling of 26854990847999 in words is "twenty-six trillion, eight hundred fifty-four billion, nine hundred ninety million, eight hundred forty-seven thousand, nine hundred ninety-nine".