52805735993721 has 32 divisors (see below), whose sum is σ = 72366331847040. Its totient is φ = 34232066555904.

The previous prime is 52805735993707. The next prime is 52805735993783. The reversal of 52805735993721 is 12739953750825.

It is not a de Polignac number, because 52805735993721 - 2³⁰ = 52804662251897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52805735995721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30607111 + ... + 32286323.

It is an arithmetic number, because the mean of its divisors is an integer number (2261447870220).

Almost surely, 2^{52805735993721} is an apocalyptic number.

It is an amenable number.

52805735993721 is a deficient number, since it is larger than the sum of its proper divisors (19560595853319).

52805735993721 is a wasteful number, since it uses less digits than its factorization.

52805735993721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680345.

The product of its (nonzero) digits is 142884000, while the sum is 66.

The spelling of 52805735993721 in words is "fifty-two trillion, eight hundred five billion, seven hundred thirty-five million, nine hundred ninety-three thousand, seven hundred twenty-one".