3561131274673 has 32 divisors (see below), whose sum is σ = 4319017629696. Its totient is φ = 2870306575488.

The previous prime is 3561131274601. The next prime is 3561131274689. The reversal of 3561131274673 is 3764721311653.

It is a cyclic number.

It is not a de Polignac number, because 3561131274673 - 2⁹ = 3561131274161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3561131274373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3114690 + ... + 4101652.

It is an arithmetic number, because the mean of its divisors is an integer number (134969300928).

Almost surely, 2^{3561131274673} is an apocalyptic number.

It is an amenable number.

3561131274673 is a deficient number, since it is larger than the sum of its proper divisors (757886355023).

3561131274673 is a wasteful number, since it uses less digits than its factorization.

3561131274673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987373.

The product of its digits is 1905120, while the sum is 49.

The spelling of 3561131274673 in words is "three trillion, five hundred sixty-one billion, one hundred thirty-one million, two hundred seventy-four thousand, six hundred seventy-three".