389958895871 has 4 divisors (see below), whose sum is σ = 390241271544. Its totient is φ = 389676520200.

The previous prime is 389958895853. The next prime is 389958895927. The reversal of 389958895871 is 178598859983.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389958895871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389958895471) 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 3 ways as a sum of consecutive naturals, for example, 141185765 + ... + 141188526.

It is an arithmetic number, because the mean of its divisors is an integer number (97560317886).

Almost surely, 2^389958895871 is an apocalyptic number.

389958895871 is a deficient number, since it is larger than the sum of its proper divisors (282375673).

389958895871 is a wasteful number, since it uses less digits than its factorization.

389958895871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282375672.

The product of its digits is 1567641600, while the sum is 80.

The spelling of 389958895871 in words is "three hundred eighty-nine billion, nine hundred fifty-eight million, eight hundred ninety-five thousand, eight hundred seventy-one".