489636421692 has 48 divisors (see below), whose sum is σ = 1260351187200. Its totient is φ = 146707538560.

The previous prime is 489636421657. The next prime is 489636421697. The reversal of 489636421692 is 296124636984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489636421697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20827392 + ... + 20850887.

It is an arithmetic number, because the mean of its divisors is an integer number (26257316400).

Almost surely, 2^489636421692 is an apocalyptic number.

It is an amenable number.

489636421692 is an abundant number, since it is smaller than the sum of its proper divisors (770714765508).

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

489636421692 is a wasteful number, since it uses less digits than its factorization.

489636421692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41678386 (or 41678384 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 60.

The spelling of 489636421692 in words is "four hundred eighty-nine billion, six hundred thirty-six million, four hundred twenty-one thousand, six hundred ninety-two".