53644347417 has 4 divisors (see below), whose sum is σ = 71525796560. Its totient is φ = 35762898276.

The previous prime is 53644347359. The next prime is 53644347439. The reversal of 53644347417 is 71474344635.

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 not a de Polignac number, because 53644347417 - 2⁶ = 53644347353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53644347457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8940724567 + ... + 8940724572.

It is an arithmetic number, because the mean of its divisors is an integer number (17881449140).

Almost surely, 2^53644347417 is an apocalyptic number.

It is an amenable number.

53644347417 is a deficient number, since it is larger than the sum of its proper divisors (17881449143).

53644347417 is a wasteful number, since it uses less digits than its factorization.

53644347417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17881449142.

The product of its digits is 3386880, while the sum is 48.

The spelling of 53644347417 in words is "fifty-three billion, six hundred forty-four million, three hundred forty-seven thousand, four hundred seventeen".