12800450922146 has 4 divisors (see below), whose sum is σ = 19200676383222. Its totient is φ = 6400225461072.

The previous prime is 12800450922139. The next prime is 12800450922179. The reversal of 12800450922146 is 64122905400821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6552775705921 + 6247675216225 = 2559839^2 + 2499535^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12800450922097 and 12800450922106.

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 as a sum of consecutive naturals, namely, 3200112730535 + ... + 3200112730538.

Almost surely, 2^{12800450922146} is an apocalyptic number.

12800450922146 is a deficient number, since it is larger than the sum of its proper divisors (6400225461076).

12800450922146 is an equidigital number, since it uses as much as digits as its factorization.

12800450922146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400225461075.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 12800450922146 in words is "twelve trillion, eight hundred billion, four hundred fifty million, nine hundred twenty-two thousand, one hundred forty-six".