26646540260134 has 4 divisors (see below), whose sum is σ = 39969810390204. Its totient is φ = 13323270130066.

The previous prime is 26646540260089. The next prime is 26646540260159. The reversal of 26646540260134 is 43106204564662.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6661635065032 + ... + 6661635065035.

It is an arithmetic number, because the mean of its divisors is an integer number (9992452597551).

Almost surely, 2^{26646540260134} is an apocalyptic number.

26646540260134 is a deficient number, since it is larger than the sum of its proper divisors (13323270130070).

26646540260134 is a wasteful number, since it uses less digits than its factorization.

26646540260134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13323270130069.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 26646540260134 in words is "twenty-six trillion, six hundred forty-six billion, five hundred forty million, two hundred sixty thousand, one hundred thirty-four".