973459113521 has 4 divisors (see below), whose sum is σ = 973461625344. Its totient is φ = 973456601700.

The previous prime is 973459113493. The next prime is 973459113533. The reversal of 973459113521 is 125311954379.

It is a happy number.

973459113521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 973459113521 - 2²⁶ = 973392004657 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 973459113521.

It is not an unprimeable number, because it can be changed into a prime (973459113421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537665 + ... + 1495326.

It is an arithmetic number, because the mean of its divisors is an integer number (243365406336).

Almost surely, 2^973459113521 is an apocalyptic number.

It is an amenable number.

973459113521 is a deficient number, since it is larger than the sum of its proper divisors (2511823).

973459113521 is a wasteful number, since it uses less digits than its factorization.

973459113521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511822.

The product of its digits is 1020600, while the sum is 50.

The spelling of 973459113521 in words is "nine hundred seventy-three billion, four hundred fifty-nine million, one hundred thirteen thousand, five hundred twenty-one".