8920478438089 has 9 divisors (see below), whose sum is σ = 8966581334581. Its totient is φ = 8874611425120.

The previous prime is 8920478438083. The next prime is 8920478438129. The reversal of 8920478438089 is 9808348740298.

The square root of 8920478438089 is 2986717.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3678704820025 + 5241773618064 = 1917995^2 + 2289492^2 .

It is not a de Polignac number, because 8920478438089 - 2¹⁷ = 8920478307017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8920478438083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 588375669 + ... + 588390829.

Almost surely, 2^{8920478438089} is an apocalyptic number.

8920478438089 is the 2986717-th square number.

8920478438089 is the 1493359-th centered octagonal number.

It is an amenable number.

8920478438089 is a deficient number, since it is larger than the sum of its proper divisors (46102896492).

8920478438089 is an frugal number, since it uses more digits than its factorization.

8920478438089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30716 (or 15358 counting only the distinct ones).

The product of its (nonzero) digits is 222953472, while the sum is 70.

The spelling of 8920478438089 in words is "eight trillion, nine hundred twenty billion, four hundred seventy-eight million, four hundred thirty-eight thousand, eighty-nine".