3788173220329 has 27 divisors (see below), whose sum is σ = 3902778449661. Its totient is φ = 3676915558680.

The previous prime is 3788173220327. The next prime is 3788173220341. The reversal of 3788173220329 is 9230223718873.

The square root of 3788173220329 is 1946323.

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

It is not a de Polignac number, because 3788173220329 - 2¹ = 3788173220327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3788173220329.

It is not an unprimeable number, because it can be changed into a prime (3788173220327) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10916925534 + ... + 10916925880.

Almost surely, 2^{3788173220329} is an apocalyptic number.

3788173220329 is the 1946323-rd square number.

3788173220329 is the 973162-nd centered octagonal number.

It is an amenable number.

3788173220329 is a deficient number, since it is larger than the sum of its proper divisors (114605229332).

3788173220329 is an frugal number, since it uses more digits than its factorization.

3788173220329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 3788173220329 in words is "three trillion, seven hundred eighty-eight billion, one hundred seventy-three million, two hundred twenty thousand, three hundred twenty-nine".