9777203429904 has 75 divisors (see below), whose sum is σ = 28298389126557. Its totient is φ = 3259030287744.

The previous prime is 9777203429849. The next prime is 9777203429921. The reversal of 9777203429904 is 4099243027779.

The square root of 9777203429904 is 3126852.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3576864387600 + 6200339042304 = 1891260^2 + 2490048^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 112523244 + ... + 112610100.

Almost surely, 2^{9777203429904} is an apocalyptic number.

9777203429904 is the 3126852-nd square number.

It is an amenable number.

9777203429904 is an abundant number, since it is smaller than the sum of its proper divisors (18521185696653).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9777203429904 is an frugal number, since it uses more digits than its factorization.

9777203429904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173734 (or 86862 counting only the distinct ones).

The product of its (nonzero) digits is 48009024, while the sum is 63.

The spelling of 9777203429904 in words is "nine trillion, seven hundred seventy-seven billion, two hundred three million, four hundred twenty-nine thousand, nine hundred four".