2134666447 has 4 divisors (see below), whose sum is σ = 2142602280. Its totient is φ = 2126730616.

The previous prime is 2134666427. The next prime is 2134666537. The reversal of 2134666447 is 7446664312.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2134666447 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 (2134666427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3967513 + ... + 3968050.

It is an arithmetic number, because the mean of its divisors is an integer number (535650570).

Almost surely, 2^2134666447 is an apocalyptic number.

2134666447 is a deficient number, since it is larger than the sum of its proper divisors (7935833).

2134666447 is an equidigital number, since it uses as much as digits as its factorization.

2134666447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7935832.

The product of its digits is 580608, while the sum is 43.

The square root of 2134666447 is about 46202.4506601111. The cubic root of 2134666447 is about 1287.5872709499.

The spelling of 2134666447 in words is "two billion, one hundred thirty-four million, six hundred sixty-six thousand, four hundred forty-seven".