73313218745 has 32 divisors (see below), whose sum is σ = 96370331904. Its totient is φ = 53210592000.

The previous prime is 73313218661. The next prime is 73313218747. The reversal of 73313218745 is 54781231337.

It is a happy number.

It is not a de Polignac number, because 73313218745 - 2¹⁰ = 73313217721 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73313218696 and 73313218705.

It is not an unprimeable number, because it can be changed into a prime (73313218747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5746844 + ... + 5759586.

It is an arithmetic number, because the mean of its divisors is an integer number (3011572872).

Almost surely, 2^73313218745 is an apocalyptic number.

It is an amenable number.

73313218745 is a deficient number, since it is larger than the sum of its proper divisors (23057113159).

73313218745 is a wasteful number, since it uses less digits than its factorization.

73313218745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273.

The product of its digits is 423360, while the sum is 44.

The spelling of 73313218745 in words is "seventy-three billion, three hundred thirteen million, two hundred eighteen thousand, seven hundred forty-five".