2146446789437 has 4 divisors (see below), whose sum is σ = 2147198086236. Its totient is φ = 2145695492640.

The previous prime is 2146446789427. The next prime is 2146446789439. The reversal of 2146446789437 is 7349876446412.

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 1583517707641 + 562929081796 = 1258379^2 + 750286^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146446789437 - 2⁸ = 2146446789181 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 (2146446789439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375644114 + ... + 375649827.

It is an arithmetic number, because the mean of its divisors is an integer number (536799521559).

Almost surely, 2^{2146446789437} is an apocalyptic number.

It is an amenable number.

2146446789437 is a deficient number, since it is larger than the sum of its proper divisors (751296799).

2146446789437 is an equidigital number, since it uses as much as digits as its factorization.

2146446789437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751296798.

The product of its digits is 195084288, while the sum is 65.

The spelling of 2146446789437 in words is "two trillion, one hundred forty-six billion, four hundred forty-six million, seven hundred eighty-nine thousand, four hundred thirty-seven".