73091287368 has 96 divisors (see below), whose sum is σ = 216051544800. Its totient is φ = 22138617600.

The previous prime is 73091287343. The next prime is 73091287369. The reversal of 73091287368 is 86378219037.

It is a super-3 number, since 3×73091287368³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (73091287369) 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 23 ways as a sum of consecutive naturals, for example, 1786323 + ... + 1826781.

It is an arithmetic number, because the mean of its divisors is an integer number (2250536925).

Almost surely, 2^73091287368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73091287368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108025772400).

73091287368 is an abundant number, since it is smaller than the sum of its proper divisors (142960257432).

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

73091287368 is a wasteful number, since it uses less digits than its factorization.

73091287368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42763 (or 42756 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 73091287368 in words is "seventy-three billion, ninety-one million, two hundred eighty-seven thousand, three hundred sixty-eight".