9775788634 has 16 divisors (see below), whose sum is σ = 14744188800. Its totient is φ = 4861082160.

The previous prime is 9775788563. The next prime is 9775788653. The reversal of 9775788634 is 4368875779.

9775788634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1151164 + ... + 1159624.

It is an arithmetic number, because the mean of its divisors is an integer number (921511800).

Almost surely, 2^9775788634 is an apocalyptic number.

9775788634 is a deficient number, since it is larger than the sum of its proper divisors (4968400166).

9775788634 is a wasteful number, since it uses less digits than its factorization.

9775788634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11565.

The product of its digits is 71124480, while the sum is 64.

The square root of 9775788634 is about 98872.5878795533. The cubic root of 9775788634 is about 2138.2112045504.

The spelling of 9775788634 in words is "nine billion, seven hundred seventy-five million, seven hundred eighty-eight thousand, six hundred thirty-four".