729874573522 has 16 divisors (see below), whose sum is σ = 1161507824640. Its totient is φ = 343007774928.

The previous prime is 729874573499. The next prime is 729874573529. The reversal of 729874573522 is 225375478927.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (729874573529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75614173 + ... + 75623824.

It is an arithmetic number, because the mean of its divisors is an integer number (72594239040).

Almost surely, 2^729874573522 is an apocalyptic number.

729874573522 is a deficient number, since it is larger than the sum of its proper divisors (431633251118).

729874573522 is a wasteful number, since it uses less digits than its factorization.

729874573522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151238145.

The product of its digits is 59270400, while the sum is 61.

The spelling of 729874573522 in words is "seven hundred twenty-nine billion, eight hundred seventy-four million, five hundred seventy-three thousand, five hundred twenty-two".