3513384650561 has 4 divisors (see below), whose sum is σ = 3561513207492. Its totient is φ = 3465256093632.

The previous prime is 3513384650557. The next prime is 3513384650569. The reversal of 3513384650561 is 1650564833153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2198268814336 + 1315115836225 = 1482656^2 + 1146785^2 .

It is a cyclic number.

It is not a de Polignac number, because 3513384650561 - 2² = 3513384650557 is a prime.

It is a super-2 number, since 2×3513384650561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3513384650569) 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, 24064278356 + ... + 24064278501.

It is an arithmetic number, because the mean of its divisors is an integer number (890378301873).

Almost surely, 2^{3513384650561} is an apocalyptic number.

It is an amenable number.

3513384650561 is a deficient number, since it is larger than the sum of its proper divisors (48128556931).

3513384650561 is an equidigital number, since it uses as much as digits as its factorization.

3513384650561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48128556930.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 3513384650561 in words is "three trillion, five hundred thirteen billion, three hundred eighty-four million, six hundred fifty thousand, five hundred sixty-one".