9622784649 has 4 divisors (see below), whose sum is σ = 12830379536. Its totient is φ = 6415189764.

The previous prime is 9622784641. The next prime is 9622784659. The reversal of 9622784649 is 9464872269.

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 not a de Polignac number, because 9622784649 - 2³ = 9622784641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9622784641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603797439 + ... + 1603797444.

It is an arithmetic number, because the mean of its divisors is an integer number (3207594884).

Almost surely, 2^9622784649 is an apocalyptic number.

It is an amenable number.

9622784649 is a deficient number, since it is larger than the sum of its proper divisors (3207594887).

9622784649 is a wasteful number, since it uses less digits than its factorization.

9622784649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207594886.

The product of its digits is 10450944, while the sum is 57.

The square root of 9622784649 is about 98095.7932278444. The cubic root of 9622784649 is about 2126.9972197927.

The spelling of 9622784649 in words is "nine billion, six hundred twenty-two million, seven hundred eighty-four thousand, six hundred forty-nine".