73317748505 has 4 divisors (see below), whose sum is σ = 87981298212. Its totient is φ = 58654198800.

The previous prime is 73317748501. The next prime is 73317748513. The reversal of 73317748505 is 50584771337.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50584771337 = 21089 ⋅2398633.

It can be written as a sum of positive squares in 2 ways, for example, as 36479472016 + 36838276489 = 190996^2 + 191933^2 .

It is not a de Polignac number, because 73317748505 - 2² = 73317748501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73317748501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7331774846 + ... + 7331774855.

It is an arithmetic number, because the mean of its divisors is an integer number (21995324553).

Almost surely, 2^73317748505 is an apocalyptic number.

It is an amenable number.

73317748505 is a deficient number, since it is larger than the sum of its proper divisors (14663549707).

73317748505 is a wasteful number, since it uses less digits than its factorization.

73317748505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14663549706.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 73317748505 in words is "seventy-three billion, three hundred seventeen million, seven hundred forty-eight thousand, five hundred five".