489285170638 has 8 divisors (see below), whose sum is σ = 800648461080. Its totient is φ = 222402350280.

The previous prime is 489285170623. The next prime is 489285170639. The reversal of 489285170638 is 836071582984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489285170639) 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, 11120117493 + ... + 11120117536.

It is an arithmetic number, because the mean of its divisors is an integer number (100081057635).

It is a 2-persistent number, because it is pandigital, and so is 2⋅489285170638 = 978570341276, but 3⋅489285170638 = 1467855511914 is not.

Almost surely, 2^489285170638 is an apocalyptic number.

489285170638 is a deficient number, since it is larger than the sum of its proper divisors (311363290442).

489285170638 is a wasteful number, since it uses less digits than its factorization.

489285170638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22240235042.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 489285170638 in words is "four hundred eighty-nine billion, two hundred eighty-five million, one hundred seventy thousand, six hundred thirty-eight".