489654898920 has 192 divisors, whose sum is σ = 1792051223040. Its totient is φ = 114875020800.

The previous prime is 489654898907. The next prime is 489654898939. The reversal of 489654898920 is 29898456984.

489654898920 is a `hidden beast` number, since 4 + 8 + 9 + 65 + 489 + 89 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1871599 + ... + 2117118.

It is an arithmetic number, because the mean of its divisors is an integer number (9333600120).

Almost surely, 2^489654898920 is an apocalyptic number.

489654898920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489654898920 is an abundant number, since it is smaller than the sum of its proper divisors (1302396324120).

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

489654898920 is a wasteful number, since it uses less digits than its factorization.

489654898920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988776 (or 3988769 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 72.

The spelling of 489654898920 in words is "four hundred eighty-nine billion, six hundred fifty-four million, eight hundred ninety-eight thousand, nine hundred twenty".