2912873916985 has 8 divisors (see below), whose sum is σ = 3497796223560. Its totient is φ = 2328734118144.

The previous prime is 2912873916977. The next prime is 2912873917003. The reversal of 2912873916985 is 5896193782192.

It can be written as a sum of positive squares in 4 ways, for example, as 235383136569 + 2677490780416 = 485163^2 + 1636304^2 .

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 2912873916985 - 2³ = 2912873916977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195618742 + ... + 195633631.

It is an arithmetic number, because the mean of its divisors is an integer number (437224527945).

Almost surely, 2^{2912873916985} is an apocalyptic number.

It is an amenable number.

2912873916985 is a deficient number, since it is larger than the sum of its proper divisors (584922306575).

2912873916985 is a wasteful number, since it uses less digits than its factorization.

2912873916985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391253867.

The product of its digits is 117573120, while the sum is 70.

The spelling of 2912873916985 in words is "two trillion, nine hundred twelve billion, eight hundred seventy-three million, nine hundred sixteen thousand, nine hundred eighty-five".