6539356617 has 4 divisors (see below), whose sum is σ = 8719142160. Its totient is φ = 4359571076.

The previous prime is 6539356601. The next prime is 6539356657. The reversal of 6539356617 is 7166539356.

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 a cyclic number.

It is not a de Polignac number, because 6539356617 - 2⁴ = 6539356601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6539356617.

It is not an unprimeable number, because it can be changed into a prime (6539356657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089892767 + ... + 1089892772.

It is an arithmetic number, because the mean of its divisors is an integer number (2179785540).

Almost surely, 2^6539356617 is an apocalyptic number.

It is an amenable number.

6539356617 is a deficient number, since it is larger than the sum of its proper divisors (2179785543).

6539356617 is a wasteful number, since it uses less digits than its factorization.

6539356617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179785542.

The product of its digits is 3061800, while the sum is 51.

The square root of 6539356617 is about 80866.2885076346. The cubic root of 6539356617 is about 1870.0146430455.

The spelling of 6539356617 in words is "six billion, five hundred thirty-nine million, three hundred fifty-six thousand, six hundred seventeen".