53644134217 has 8 divisors (see below), whose sum is σ = 54010141760. Its totient is φ = 53278268400.

The previous prime is 53644134149. The next prime is 53644134221. The reversal of 53644134217 is 71243144635.

53644134217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53644134217 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 53644134217.

It is not an unprimeable number, because it can be changed into a prime (53644134227) 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, 789259 + ... + 854527.

It is an arithmetic number, because the mean of its divisors is an integer number (6751267720).

Almost surely, 2^53644134217 is an apocalyptic number.

It is an amenable number.

53644134217 is a deficient number, since it is larger than the sum of its proper divisors (366007543).

53644134217 is a wasteful number, since it uses less digits than its factorization.

53644134217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70863.

The product of its digits is 241920, while the sum is 40.

The spelling of 53644134217 in words is "fifty-three billion, six hundred forty-four million, one hundred thirty-four thousand, two hundred seventeen".