26005600663997 has 8 divisors (see below), whose sum is σ = 27158467273344. Its totient is φ = 24854583081328.

The previous prime is 26005600663901. The next prime is 26005600664081. The reversal of 26005600663997 is 79936600650062.

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

It is a cyclic number.

It is not a de Polignac number, because 26005600663997 - 2⁴⁰ = 24906089036221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26005600665997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462227918 + ... + 462284175.

It is an arithmetic number, because the mean of its divisors is an integer number (3394808409168).

Almost surely, 2^{26005600663997} is an apocalyptic number.

It is an amenable number.

26005600663997 is a deficient number, since it is larger than the sum of its proper divisors (1152866609347).

26005600663997 is a wasteful number, since it uses less digits than its factorization.

26005600663997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924513339.

The product of its (nonzero) digits is 22044960, while the sum is 59.

The spelling of 26005600663997 in words is "twenty-six trillion, five billion, six hundred million, six hundred sixty-three thousand, nine hundred ninety-seven".