67813134918 has 16 divisors (see below), whose sum is σ = 135845382720. Its totient is φ = 22567859496.

The previous prime is 67813134871. The next prime is 67813134919. The reversal of 67813134918 is 81943131876.

It is a happy number.

It is a super-3 number, since 3×67813134918³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67813134919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9125680 + ... + 9133107.

It is an arithmetic number, because the mean of its divisors is an integer number (8490336420).

Almost surely, 2^67813134918 is an apocalyptic number.

67813134918 is an abundant number, since it is smaller than the sum of its proper divisors (68032247802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67813134918 is a wasteful number, since it uses less digits than its factorization.

67813134918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18259411.

The product of its digits is 870912, while the sum is 51.

The spelling of 67813134918 in words is "sixty-seven billion, eight hundred thirteen million, one hundred thirty-four thousand, nine hundred eighteen".