73143784325 has 6 divisors (see below), whose sum is σ = 90698292594. Its totient is φ = 58515027440.

The previous prime is 73143784319. The next prime is 73143784339. The reversal of 73143784325 is 52348734137.

It can be written as a sum of positive squares in 3 ways, for example, as 6496682404 + 66647101921 = 80602^2 + 258161^2 .

It is not a de Polignac number, because 73143784325 - 2⁴ = 73143784309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73143784325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1462875662 + ... + 1462875711.

It is an arithmetic number, because the mean of its divisors is an integer number (15116382099).

Almost surely, 2^73143784325 is an apocalyptic number.

It is an amenable number.

73143784325 is a deficient number, since it is larger than the sum of its proper divisors (17554508269).

73143784325 is a wasteful number, since it uses less digits than its factorization.

73143784325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925751383 (or 2925751378 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 47.

The spelling of 73143784325 in words is "seventy-three billion, one hundred forty-three million, seven hundred eighty-four thousand, three hundred twenty-five".