3518513561213 has 4 divisors (see below), whose sum is σ = 4021158355680. Its totient is φ = 3015868766748.

The previous prime is 3518513561209. The next prime is 3518513561221. The reversal of 3518513561213 is 3121653158153.

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 3518513561213 - 2² = 3518513561209 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 (3518513567213) 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, 251322397223 + ... + 251322397236.

It is an arithmetic number, because the mean of its divisors is an integer number (1005289588920).

Almost surely, 2^{3518513561213} is an apocalyptic number.

It is an amenable number.

3518513561213 is a deficient number, since it is larger than the sum of its proper divisors (502644794467).

3518513561213 is an equidigital number, since it uses as much as digits as its factorization.

3518513561213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502644794466.

The product of its digits is 324000, while the sum is 44.

The spelling of 3518513561213 in words is "three trillion, five hundred eighteen billion, five hundred thirteen million, five hundred sixty-one thousand, two hundred thirteen".