389873825734 has 4 divisors (see below), whose sum is σ = 584810738604. Its totient is φ = 194936912866.

The previous prime is 389873825729. The next prime is 389873825777. The reversal of 389873825734 is 437528378983.

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

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 389873825734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97468456432 + ... + 97468456435.

It is an arithmetic number, because the mean of its divisors is an integer number (146202684651).

Almost surely, 2^389873825734 is an apocalyptic number.

389873825734 is a deficient number, since it is larger than the sum of its proper divisors (194936912870).

389873825734 is a wasteful number, since it uses less digits than its factorization.

389873825734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194936912869.

The product of its digits is 243855360, while the sum is 67.

The spelling of 389873825734 in words is "three hundred eighty-nine billion, eight hundred seventy-three million, eight hundred twenty-five thousand, seven hundred thirty-four".