389626191039 has 4 divisors (see below), whose sum is σ = 519501588056. Its totient is φ = 259750794024.

The previous prime is 389626190977. The next prime is 389626191047. The reversal of 389626191039 is 930191626983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930191626983 = 3 ⋅310063875661.

It is not a de Polignac number, because 389626191039 - 2⁷ = 389626190911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389626191039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389626191049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64937698504 + ... + 64937698509.

It is an arithmetic number, because the mean of its divisors is an integer number (129875397014).

Almost surely, 2^389626191039 is an apocalyptic number.

389626191039 is a deficient number, since it is larger than the sum of its proper divisors (129875397017).

389626191039 is a wasteful number, since it uses less digits than its factorization.

389626191039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129875397016.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The spelling of 389626191039 in words is "three hundred eighty-nine billion, six hundred twenty-six million, one hundred ninety-one thousand, thirty-nine".