3538366685517 has 8 divisors (see below), whose sum is σ = 4845330956896. Its totient is φ = 2295156768912.

The previous prime is 3538366685509. The next prime is 3538366685521. The reversal of 3538366685517 is 7155866638353.

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

It is not a de Polignac number, because 3538366685517 - 2³ = 3538366685509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538366685587) 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, 15938588563 + ... + 15938588784.

It is an arithmetic number, because the mean of its divisors is an integer number (605666369612).

Almost surely, 2^{3538366685517} is an apocalyptic number.

3538366685517 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3538366685517 is a deficient number, since it is larger than the sum of its proper divisors (1306964271379).

3538366685517 is a wasteful number, since it uses less digits than its factorization.

3538366685517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31877177387.

The product of its digits is 326592000, while the sum is 66.

The spelling of 3538366685517 in words is "three trillion, five hundred thirty-eight billion, three hundred sixty-six million, six hundred eighty-five thousand, five hundred seventeen".