27018207172073 has 16 divisors (see below), whose sum is σ = 29576196249600. Its totient is φ = 24531991867584.

The previous prime is 27018207172031. The next prime is 27018207172087. The reversal of 27018207172073 is 37027170281072.

It is a cyclic number.

It is not a de Polignac number, because 27018207172073 - 2²⁰ = 27018206123497 is a prime.

It is a super-2 number, since 2×27018207172073² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (27018207172013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67511561 + ... + 67910582.

It is an arithmetic number, because the mean of its divisors is an integer number (1848512265600).

Almost surely, 2^{27018207172073} is an apocalyptic number.

It is an amenable number.

27018207172073 is a deficient number, since it is larger than the sum of its proper divisors (2557989077527).

27018207172073 is a wasteful number, since it uses less digits than its factorization.

27018207172073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135422408.

The product of its (nonzero) digits is 460992, while the sum is 47.

The spelling of 27018207172073 in words is "twenty-seven trillion, eighteen billion, two hundred seven million, one hundred seventy-two thousand, seventy-three".