389613395845129 has 27 divisors (see below), whose sum is σ = 400573067891637. Its totient is φ = 378951319868928.

The previous prime is 389613395845111. The next prime is 389613395845133. The reversal of 389613395845129 is 921548593316983.

The square root of 389613395845129 is 19738627.

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 186546563822025 + 203066832023104 = 13658205^2 + 14250152^2 .

It is not a de Polignac number, because 389613395845129 - 2²⁵ = 389613362290697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389613395845139) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 112964160597 + ... + 112964164045.

Almost surely, 2^{389613395845129} is an apocalyptic number.

389613395845129 is the 19738627-th square number.

389613395845129 is the 9869314-th centered octagonal number.

It is an amenable number.

389613395845129 is a deficient number, since it is larger than the sum of its proper divisors (10959672046508).

389613395845129 is an frugal number, since it uses more digits than its factorization.

389613395845129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7210 (or 3605 counting only the distinct ones).

The product of its digits is 1511654400, while the sum is 76.

The spelling of 389613395845129 in words is "three hundred eighty-nine trillion, six hundred thirteen billion, three hundred ninety-five million, eight hundred forty-five thousand, one hundred twenty-nine".