12841678945 has 8 divisors (see below), whose sum is σ = 15414503400. Its totient is φ = 10270350720.

The previous prime is 12841678919. The next prime is 12841678951. The reversal of 12841678945 is 54987614821.

It can be written as a sum of positive squares in 4 ways, for example, as 1146770496 + 11694908449 = 33864^2 + 108143^2 .

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

It is not a de Polignac number, because 12841678945 - 2¹⁵ = 12841646177 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, 355086 + ... + 389575.

It is an arithmetic number, because the mean of its divisors is an integer number (1926812925).

Almost surely, 2^12841678945 is an apocalyptic number.

It is an amenable number.

12841678945 is a deficient number, since it is larger than the sum of its proper divisors (2572824455).

12841678945 is an equidigital number, since it uses as much as digits as its factorization.

12841678945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748115.

The product of its digits is 3870720, while the sum is 55.

The spelling of 12841678945 in words is "twelve billion, eight hundred forty-one million, six hundred seventy-eight thousand, nine hundred forty-five".