39243228617 has 16 divisors (see below), whose sum is σ = 40887659520. Its totient is φ = 37640182272.

The previous prime is 39243228571. The next prime is 39243228641. The reversal of 39243228617 is 71682234293.

It is a cyclic number.

It is not a de Polignac number, because 39243228617 - 2⁸ = 39243228361 is a prime.

It is a super-3 number, since 3×39243228617³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39243228697) 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, 431168 + ... + 514190.

It is an arithmetic number, because the mean of its divisors is an integer number (2555478720).

Almost surely, 2^39243228617 is an apocalyptic number.

It is an amenable number.

39243228617 is a deficient number, since it is larger than the sum of its proper divisors (1644430903).

39243228617 is a wasteful number, since it uses less digits than its factorization.

39243228617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83272.

The product of its digits is 870912, while the sum is 47.

The spelling of 39243228617 in words is "thirty-nine billion, two hundred forty-three million, two hundred twenty-eight thousand, six hundred seventeen".