489955803786 has 24 divisors (see below), whose sum is σ = 1061623819620. Its totient is φ = 163310461056.

The previous prime is 489955803767. The next prime is 489955803791. The reversal of 489955803786 is 687308559984.

489955803786 is a `hidden beast` number, since 4 + 8 + 9 + 9 + 5 + 580 + 37 + 8 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 475210316025 + 14745487761 = 689355^2 + 121431^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301525 + ... + 1034808.

Almost surely, 2^489955803786 is an apocalyptic number.

489955803786 is an abundant number, since it is smaller than the sum of its proper divisors (571668015834).

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

489955803786 is a wasteful number, since it uses less digits than its factorization.

489955803786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356710 (or 1356707 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 72.

The spelling of 489955803786 in words is "four hundred eighty-nine billion, nine hundred fifty-five million, eight hundred three thousand, seven hundred eighty-six".