3180944578213 has 4 divisors (see below), whose sum is σ = 3216685528620. Its totient is φ = 3145203627808.

The previous prime is 3180944578193. The next prime is 3180944578241. The reversal of 3180944578213 is 3128754490813.

3180944578213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1017318338884 + 2163626239329 = 1008622^2 + 1470927^2 .

It is a cyclic number.

It is not a de Polignac number, because 3180944578213 - 2⁴¹ = 981921322661 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 (3180944558213) 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, 17870475070 + ... + 17870475247.

It is an arithmetic number, because the mean of its divisors is an integer number (804171382155).

Almost surely, 2^{3180944578213} is an apocalyptic number.

It is an amenable number.

3180944578213 is a deficient number, since it is larger than the sum of its proper divisors (35740950407).

3180944578213 is an equidigital number, since it uses as much as digits as its factorization.

3180944578213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35740950406.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 3180944578213 in words is "three trillion, one hundred eighty billion, nine hundred forty-four million, five hundred seventy-eight thousand, two hundred thirteen".