9661773404 has 12 divisors (see below), whose sum is σ = 17902697904. Its totient is φ = 4546716864.

The previous prime is 9661773397. The next prime is 9661773413. The reversal of 9661773404 is 4043771669.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71042384 + ... + 71042519.

It is an arithmetic number, because the mean of its divisors is an integer number (1491891492).

Almost surely, 2^9661773404 is an apocalyptic number.

It is an amenable number.

9661773404 is a deficient number, since it is larger than the sum of its proper divisors (8240924500).

9661773404 is a wasteful number, since it uses less digits than its factorization.

9661773404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142084924 (or 142084922 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 9661773404 is about 98294.3203038711. The cubic root of 9661773404 is about 2129.8660090428.

The spelling of 9661773404 in words is "nine billion, six hundred sixty-one million, seven hundred seventy-three thousand, four hundred four".