489658000391 has 4 divisors (see below), whose sum is σ = 559609143312. Its totient is φ = 419706857472.

The previous prime is 489658000387. The next prime is 489658000409. The reversal of 489658000391 is 193000856984.

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

It is not a de Polignac number, because 489658000391 - 2² = 489658000387 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 (489658030391) 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, 34975571450 + ... + 34975571463.

It is an arithmetic number, because the mean of its divisors is an integer number (139902285828).

Almost surely, 2^489658000391 is an apocalyptic number.

489658000391 is a deficient number, since it is larger than the sum of its proper divisors (69951142921).

489658000391 is an equidigital number, since it uses as much as digits as its factorization.

489658000391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69951142920.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 489658000391 in words is "four hundred eighty-nine billion, six hundred fifty-eight million, three hundred ninety-one", and thus it is an aban number.