131345884673 has 8 divisors (see below), whose sum is σ = 137401741800. Its totient is φ = 125391806848.

The previous prime is 131345884661. The next prime is 131345884717. The reversal of 131345884673 is 376488543131.

It can be written as a sum of positive squares in 4 ways, for example, as 1174295824 + 130171588849 = 34268^2 + 360793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131345884673 - 2²⁰ = 131344836097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131345884613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25442186 + ... + 25447347.

It is an arithmetic number, because the mean of its divisors is an integer number (17175217725).

Almost surely, 2^131345884673 is an apocalyptic number.

It is an amenable number.

131345884673 is a deficient number, since it is larger than the sum of its proper divisors (6055857127).

131345884673 is an equidigital number, since it uses as much as digits as its factorization.

131345884673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50889651.

The product of its digits is 5806080, while the sum is 53.

The spelling of 131345884673 in words is "one hundred thirty-one billion, three hundred forty-five million, eight hundred eighty-four thousand, six hundred seventy-three".