27136261097985 has 128 divisors (see below), whose sum is σ = 50513418547200. Its totient is φ = 12327659688960.

The previous prime is 27136261097983. The next prime is 27136261097987. The reversal of 27136261097985 is 58979016263172.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27136261097983) and next prime (27136261097987).

It is not a de Polignac number, because 27136261097985 - 2¹ = 27136261097983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27136261097983) 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 127 ways as a sum of consecutive naturals, for example, 21212131 + ... + 22454999.

It is an arithmetic number, because the mean of its divisors is an integer number (394636082400).

Almost surely, 2^{27136261097985} is an apocalyptic number.

It is an amenable number.

27136261097985 is a deficient number, since it is larger than the sum of its proper divisors (23377157449215).

27136261097985 is a wasteful number, since it uses less digits than its factorization.

27136261097985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243063.

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 27136261097985 in words is "twenty-seven trillion, one hundred thirty-six billion, two hundred sixty-one million, ninety-seven thousand, nine hundred eighty-five".