9378802125289 has 3 divisors (see below), whose sum is σ = 9378805187773. Its totient is φ = 9378799062806.

The previous prime is 9378802125263. The next prime is 9378802125311. The reversal of 9378802125289 is 9825212088739.

The square root of 9378802125289 is 3062483.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 9378802125289 - 2⁵ = 9378802125257 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 9378802125289.

It is not an unprimeable number, because it can be changed into a prime (9378802125989) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1531242 + ... + 4593724.

Almost surely, 2^{9378802125289} is an apocalyptic number.

9378802125289 is the 3062483-rd square number.

9378802125289 is the 1531242-nd centered octagonal number.

It is an amenable number.

9378802125289 is a deficient number, since it is larger than the sum of its proper divisors (3062484).

9378802125289 is an frugal number, since it uses more digits than its factorization.

9378802125289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124966 (or 3062483 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 64.

Multiplying 9378802125289 by its sum of digits (64), we get a square (600243336018496 = 24499864²).

The spelling of 9378802125289 in words is "nine trillion, three hundred seventy-eight billion, eight hundred two million, one hundred twenty-five thousand, two hundred eighty-nine".