26668065998 has 8 divisors (see below), whose sum is σ = 45716684592. Its totient is φ = 11429171136.

The previous prime is 26668065997. The next prime is 26668066043. The reversal of 26668065998 is 89956086662.

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

It is a super-2 number, since 2×26668065998² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26668065997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952430915 + ... + 952430942.

It is an arithmetic number, because the mean of its divisors is an integer number (5714585574).

Almost surely, 2^26668065998 is an apocalyptic number.

26668065998 is a deficient number, since it is larger than the sum of its proper divisors (19048618594).

26668065998 is a wasteful number, since it uses less digits than its factorization.

26668065998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904861866.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 26668065998 in words is "twenty-six billion, six hundred sixty-eight million, sixty-five thousand, nine hundred ninety-eight".