3515881243349 has 4 divisors (see below), whose sum is σ = 3629296767360. Its totient is φ = 3402465719340.

The previous prime is 3515881243289. The next prime is 3515881243361. The reversal of 3515881243349 is 9433421885153.

3515881243349 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-3515881243349 is a prime.

It is a super-2 number, since 2×3515881243349² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3515881243294 and 3515881243303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3515881243649) 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, 56707761959 + ... + 56707762020.

It is an arithmetic number, because the mean of its divisors is an integer number (907324191840).

Almost surely, 2^{3515881243349} is an apocalyptic number.

It is an amenable number.

3515881243349 is a deficient number, since it is larger than the sum of its proper divisors (113415524011).

3515881243349 is a wasteful number, since it uses less digits than its factorization.

3515881243349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113415524010.

The product of its digits is 12441600, while the sum is 56.

The spelling of 3515881243349 in words is "three trillion, five hundred fifteen billion, eight hundred eighty-one million, two hundred forty-three thousand, three hundred forty-nine".