973159518073 has 4 divisors (see below), whose sum is σ = 991521018468. Its totient is φ = 954798017680.

The previous prime is 973159518043. The next prime is 973159518091. The reversal of 973159518073 is 370815951379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370815951379 = 4799 ⋅77269421.

It can be written as a sum of positive squares in 2 ways, for example, as 589413959289 + 383745558784 = 767733^2 + 619472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-973159518073 is a prime.

It is a super-2 number, since 2×973159518073² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 973159517999 and 973159518017.

It is not an unprimeable number, because it can be changed into a prime (973159518043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9180750118 + ... + 9180750223.

It is an arithmetic number, because the mean of its divisors is an integer number (247880254617).

Almost surely, 2^973159518073 is an apocalyptic number.

It is an amenable number.

973159518073 is a deficient number, since it is larger than the sum of its proper divisors (18361500395).

973159518073 is a wasteful number, since it uses less digits than its factorization.

973159518073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18361500394.

The product of its (nonzero) digits is 7144200, while the sum is 58.

The spelling of 973159518073 in words is "nine hundred seventy-three billion, one hundred fifty-nine million, five hundred eighteen thousand, seventy-three".