73579523573 has 16 divisors (see below), whose sum is σ = 80007554880. Its totient is φ = 67396444416.

The previous prime is 73579523569. The next prime is 73579523581. The reversal of 73579523573 is 37532597537.

It is a cyclic number.

It is not a de Polignac number, because 73579523573 - 2² = 73579523569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73579523503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20798 + ... + 384176.

It is an arithmetic number, because the mean of its divisors is an integer number (5000472180).

Almost surely, 2^73579523573 is an apocalyptic number.

It is an amenable number.

73579523573 is a deficient number, since it is larger than the sum of its proper divisors (6428031307).

73579523573 is a wasteful number, since it uses less digits than its factorization.

73579523573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363716.

The product of its digits is 20837250, while the sum is 56.

The spelling of 73579523573 in words is "seventy-three billion, five hundred seventy-nine million, five hundred twenty-three thousand, five hundred seventy-three".