3561130809671 has 4 divisors (see below), whose sum is σ = 3562908710232. Its totient is φ = 3559352909112.

The previous prime is 3561130809667. The next prime is 3561130809673. The reversal of 3561130809671 is 1769080311653.

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

It is a cyclic number.

It is not a de Polignac number, because 3561130809671 - 2² = 3561130809667 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 (3561130809673) 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, 888947276 + ... + 888951281.

It is an arithmetic number, because the mean of its divisors is an integer number (890727177558).

Almost surely, 2^{3561130809671} is an apocalyptic number.

3561130809671 is a deficient number, since it is larger than the sum of its proper divisors (1777900561).

3561130809671 is a wasteful number, since it uses less digits than its factorization.

3561130809671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777900560.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 3561130809671 in words is "three trillion, five hundred sixty-one billion, one hundred thirty million, eight hundred nine thousand, six hundred seventy-one".