389289238671 has 4 divisors (see below), whose sum is σ = 519052318232. Its totient is φ = 259526159112.

The previous prime is 389289238631. The next prime is 389289238697. The reversal of 389289238671 is 176832982983.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 389289238671 - 2⁶ = 389289238607 is a prime.

It is a super-2 number, since 2×389289238671² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389289238631) 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 3 ways as a sum of consecutive naturals, for example, 64881539776 + ... + 64881539781.

It is an arithmetic number, because the mean of its divisors is an integer number (129763079558).

Almost surely, 2^389289238671 is an apocalyptic number.

389289238671 is a deficient number, since it is larger than the sum of its proper divisors (129763079561).

389289238671 is a wasteful number, since it uses less digits than its factorization.

389289238671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129763079560.

The product of its digits is 62705664, while the sum is 66.

The spelling of 389289238671 in words is "three hundred eighty-nine billion, two hundred eighty-nine million, two hundred thirty-eight thousand, six hundred seventy-one".