489678876906 has 64 divisors (see below), whose sum is σ = 1072940515200. Its totient is φ = 148297476096.

The previous prime is 489678876899. The next prime is 489678876931. The reversal of 489678876906 is 609678876984.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17950305 + ... + 17977563.

It is an arithmetic number, because the mean of its divisors is an integer number (16764695550).

Almost surely, 2^489678876906 is an apocalyptic number.

489678876906 is an abundant number, since it is smaller than the sum of its proper divisors (583261638294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489678876906 is a wasteful number, since it uses less digits than its factorization.

489678876906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33383.

The product of its (nonzero) digits is 1755758592, while the sum is 78.

Adding to 489678876906 its sum of digits (78), we get a palindrome (489678876984).

The spelling of 489678876906 in words is "four hundred eighty-nine billion, six hundred seventy-eight million, eight hundred seventy-six thousand, nine hundred six".