2561983145195 has 8 divisors (see below), whose sum is σ = 3139792110144. Its totient is φ = 2005978292224.

The previous prime is 2561983145153. The next prime is 2561983145203. The reversal of 2561983145195 is 5915413891652.

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 2561983145195 - 2³⁴ = 2544803276011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5451027734 + ... + 5451028203.

It is an arithmetic number, because the mean of its divisors is an integer number (392474013768).

Almost surely, 2^{2561983145195} is an apocalyptic number.

2561983145195 is a deficient number, since it is larger than the sum of its proper divisors (577808964949).

2561983145195 is a wasteful number, since it uses less digits than its factorization.

2561983145195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10902055989.

The product of its digits is 11664000, while the sum is 59.

The spelling of 2561983145195 in words is "two trillion, five hundred sixty-one billion, nine hundred eighty-three million, one hundred forty-five thousand, one hundred ninety-five".