389414688961 has 3 divisors (see below), whose sum is σ = 389415312993. Its totient is φ = 389414064930.

The previous prime is 389414688941. The next prime is 389414688973. The reversal of 389414688961 is 169886414983.

It is a happy number.

The square root of 389414688961 is 624031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 169886414983 = 5413 ⋅31384891.

It is not a de Polignac number, because 389414688961 - 2¹³ = 389414680769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389414688941) 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 2 ways as a sum of consecutive naturals, for example, 312016 + ... + 936046.

It is an arithmetic number, because the mean of its divisors is an integer number (129805104331).

Almost surely, 2^389414688961 is an apocalyptic number.

389414688961 is the 624031-st square number.

389414688961 is the 312016-th centered octagonal number.

It is an amenable number.

389414688961 is a deficient number, since it is larger than the sum of its proper divisors (624032).

389414688961 is an frugal number, since it uses more digits than its factorization.

389414688961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248062 (or 624031 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 67.

The spelling of 389414688961 in words is "three hundred eighty-nine billion, four hundred fourteen million, six hundred eighty-eight thousand, nine hundred sixty-one".