73187493168 has 40 divisors (see below), whose sum is σ = 189330739200. Its totient is φ = 24361889344.

The previous prime is 73187493167. The next prime is 73187493191. The reversal of 73187493168 is 86139478137.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73187493161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025808 + ... + 1094831.

It is an arithmetic number, because the mean of its divisors is an integer number (4733268480).

Almost surely, 2^73187493168 is an apocalyptic number.

It is an amenable number.

73187493168 is an abundant number, since it is smaller than the sum of its proper divisors (116143246032).

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

73187493168 is a wasteful number, since it uses less digits than its factorization.

73187493168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121369 (or 2121363 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 57.

The spelling of 73187493168 in words is "seventy-three billion, one hundred eighty-seven million, four hundred ninety-three thousand, one hundred sixty-eight".