7643346609 has 4 divisors (see below), whose sum is σ = 10191128816. Its totient is φ = 5095564404.

The previous prime is 7643346589. The next prime is 7643346629. The reversal of 7643346609 is 9066433467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (7643346589) and next prime (7643346629).

It is not a de Polignac number, because 7643346609 - 2⁷ = 7643346481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7643346629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1273891099 + ... + 1273891104.

It is an arithmetic number, because the mean of its divisors is an integer number (2547782204).

Almost surely, 2^7643346609 is an apocalyptic number.

It is an amenable number.

7643346609 is a deficient number, since it is larger than the sum of its proper divisors (2547782207).

7643346609 is a wasteful number, since it uses less digits than its factorization.

7643346609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547782206.

The product of its (nonzero) digits is 1959552, while the sum is 48.

The square root of 7643346609 is about 87426.2352443476. The cubic root of 7643346609 is about 1969.8259364188.

The spelling of 7643346609 in words is "seven billion, six hundred forty-three million, three hundred forty-six thousand, six hundred nine".