67312545132173 has 64 divisors (see below), whose sum is σ = 81064068433920. Its totient is φ = 55245763372800.

The previous prime is 67312545132139. The next prime is 67312545132383. The reversal of 67312545132173 is 37123154521376.

It is not a de Polignac number, because 67312545132173 - 2¹⁰ = 67312545131149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67312545152173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63874211 + ... + 64919487.

It is an arithmetic number, because the mean of its divisors is an integer number (1266626069280).

Almost surely, 2^{67312545132173} is an apocalyptic number.

It is an amenable number.

67312545132173 is a deficient number, since it is larger than the sum of its proper divisors (13751523301747).

67312545132173 is a wasteful number, since it uses less digits than its factorization.

67312545132173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045538.

The product of its digits is 3175200, while the sum is 50.

The spelling of 67312545132173 in words is "sixty-seven trillion, three hundred twelve billion, five hundred forty-five million, one hundred thirty-two thousand, one hundred seventy-three".